Salam alaicom
in the Quran, we are taught Prophets (as) were sent to all people in all times
irfan - tawasuf is one of the teachings in the Quran and Sunna, ISDhillon quoted a verse in the Quran that pertains to these teachings
"Who knows himself, knows God" "Seek knowledge even if you have to go to China, for it is knowledge of the self", etc, was a one of the messages conveyed by Mohammad (saw)
The holy spirit could have two interpetations, I have a different interpetation, it acknowledges that Jibrael (as) is it but in the degree of Angelic realm, but he is not the definition of it, the spirit of command in the infallible humans is higher then the Angelic realm, it is a spiritual realm beyond theirs including Jibrael (as) and the Quran refers to this as "they ask you about the spirit, say it is the command of my lord and you have been given only little knowledge of it" (suratal Isra)
my suggesting to shiekhs is not to take what some less-informed muslims and scholars have to say about the teachings of Islam, but see the books of great arifs like Abdul Qadir Al-Jilani and Khomeini and they will point you to some overlooked verses of the Quran and hadiths
Sikhs to me seem that they however only want to focuss on this aspect of the message of the Prophets (as) and ignore all other aspects of life, such as social and political aspects
The Quran and the Sunna deal with all aspects, and deal with them in a detail way that nothing can be added or nothing can be missing, their is nothing beyond the first 6 verses of suratal hadeed and suratal tawheed/ikhlass according to report from Imam Sajad (as)
57:1-2
Whatever is in the heavens and the earth declares the glory of Allah, and He is the Mighty, the Wise.
He is the First and the Last and the Outward and Inward, and He is Cognizant of all things.
The verse 57:2 is a teaching of the Quran, however it is not the only teaching, the parable of light of the Quran in the chapter of light is the goal of shariah and the social and political aspects of the message, which is perhaps why some of the social laws dealing with fornication and the law of hijaab is found in the chapter of light along with the parable of light, and the strict social rulings are the introduced in the begining of the chapter
To say Mohammad (pbuh) didn't focuss on this aspect in detail is not a totally unfair statement, however it is not totally accurate and in a way is unfair
while the deep teachings of marifatal nafs and mystical aspects of Quran were not taught to all people, they were taught to some of his special companions like Salman Farsi (as) and in full detail to his holy family, more particullarily Ali (as)
He (saw) then said "I am the city of knowledge, and Ali is it's gate, so who wants the knowledge and wisdom, should come by it's gate", and all spiritual lines of spiriutal teachings (sufi and irfan lines) with exception of one go back to Ali (as)
However, Islam has come for all levels of mankind and deals with all levels and aspects of mankind, which include social and political aspects of society
Sikhhs perhaps do not understand the link of politics and social aspects with the spiritual aspects, this is where we differ, if you read supplication arafa of the grandson of Mohammad (saw), Imam Hussain (as), and the whole event of aushura, perhaps you will begin to see the link
To get a taste of some of the spiritual aspects in our religion, I will post some supplications from his holy family (as)
http://al-islam.org/sahifa/dua80.html
The whispered prayer of the knowers
In the Name of God, the All-merciful,
the All-compassionate
1 My God,
tongues fall short of attaining
praise of Thee proper to Thy majesty,
intellects are incapable of grasping
the core of Thy beauty,
eyes fail before gazing
upon the glories of Thy face,
and Thou hast assigned to Thy creatures
no way to know Thee
save incapacity to know Thee!
2 My God,
place us among those
within the gardens of whose breasts
the trees of yearning for Thee have taken firm root
and the assemblies of whose hearts
have been seized by the ardour of Thy love!
They seek shelter
in the nests of meditation,
feed upon the gardens
of nearness and disclosure,
drink from the pools of love
with the cup of gentle favour,
and enter into the watering-places
of warm affection.
The covering has been lifted
from their eyes,318
the darkness of disquiet has been dispelled
from their beliefs and their innermost minds,
the contention of doubt has been negated
from their hearts and their secret thoughts,
their breasts have expanded
through the verification of true knowledge,
their aspirations have ascended
through precedent good fortune in renunciation,
their drinking is sweet
from the spring of devotion to good works,
their secret thoughts are delicious
in the sitting-place of intimacy,
their minds are secure
in the place of terror,
their souls are serene
through the return to the Lord of lords,319
their spirits have reached certitude
through triumph and prosperity,
their eyes have been gladdened
through gazing upon their Beloved,
their settling place has been settled
through reaching the request and attaining the expectation,
and their commerce has profited
through the sale of this world for the next!
3 My God,
how agreeable for hearts are
the thoughts inspiring Thy remembrance,
how sweet
travelling to Thee through imagination
upon the roads of the unseen worlds,
how pleasant
the taste of Thy love,
how delightful
the drink of Thy nearness!
So give us refuge from Thy casting out and Thy sending far,
and place us among
the most elect of Thy knowers,
the most righteous of Thy servants,
the most truthful of Thy obeyers,
the most sincere of Thy worshipers!
O All-mighty, O Majestic,
O Generous, O Endower!
By Thy mercy and kindness,
O Most Merciful of the merciful!
http://al-islam.org/sahifa/dua77.html
The Whispered Prayer of the Lovers
In the Name of God, the All-merciful,
the All-compassionate
1 My God,
who can have tasted the sweetness of Thy love,
then wanted another in place of Thee?
Who can have become intimate with Thy nearness,
then sought removal from Thee?
2 My God, place us with him
whom Thou hast
chosen for Thy nearness and Thy friendship,
purified through Thy affection and Thy love,
given yearning for the meeting with Thee,
made pleased with Thy decree,
granted gazing upon Thy face,
shown the favour of Thy good pleasure,
given refuge from separation from Thee and Thy loathing,
settled in a sure sitting place in Thy neighbourhood,
singled out for true knowledge of Thee,
made worthy for worship of Thee,
whose heart Thou hast captivated with Thy will,
whom Thou hast picked for contemplating Thee,
whose look Thou hast made empty for Thee,
whose breast Thou hast freed for Thy love,
whom Thou hast made
desirous of what is with Thee,
inspired with Thy remembrance,
allotted thanksgiving to Thee,
occupied with obeying Thee,
turned into one of Thy righteous creatures,
chosen for whispered prayer to Thee,
and from whom Thou hast cut off all things
which cut him off from Thee!
3 O God,
place us among those
whose habit is rejoicing in Thee and yearning for Thee,
whose time is spent in sighing and moaning!
Their foreheads are bowed down before Thy mightiness,
their eyes wakeful in Thy service,
their tears flowing in dread of Thee,
their hearts fixed upon Thy love,
their cores shaken with awe of Thee.
O He
the lights of whose holiness
induce wonder in the eyes of His lovers,
the glories of whose face
arouse the longing of the hearts of His knowers!
O Furthest Wish of the hearts of the yearners!
O Utmost Limit of the hopes of the lovers!
I ask from Thee love for Thee,
love for those who love Thee,
love for every work which will join me to Thy nearness,
and that Thou makest Thyself more beloved to me
than anything other than Thee
and makest
my love for Thee
lead to Thy good pleasure,
and my yearning for Thee
protect against disobeying Thee!
Oblige me by allowing me to gaze upon Thee,
gaze upon me with the eye of affection and tenderness,
turn not Thy face away from me,
and make me one of the people of happiness with Thee
and favoured position!
O Responder,
O Most Merciful of the merciful!
However, we muslims are looking for guidance for all mankind and believe in a revelation that deals with all aspects of mankind
The Quran is also a book brought down to all lower and dark realms and extending to all high spiritual realms, so it extends to all yet it's true treasure are only for the truly purifed, and Mohammad (saw) initially recieved it at certain level through Jibrael (as) (at a very high level) and then was revealed aspects of it beyond Angelic realms in his sacred night journey, while at the same time, it was brought down in reduced degrees of it's glory till it reach the state it is now, which all of mankind, including dark souls like me, can benefit from, yet at the same time having all the higher teachings yet within it for all the friends of God to strive for by mediating on the noble verses, as for Mohammad (saw) he reached the most closest position to God that is not imaginable by the likes of me, and saying he only had indirect relationship to God through Jibrael (as) is not accurate at all, the holy spirit in the Prophets (as) and Successors (as) eventually reach a state higher then Angelic realms although the initial holy spirit was through Jibrael (as), and The Quran has many sciences that are unknown to us but are known to the sacred man who's heart recieved it and his pure holy family who's hearts to were able to recieve it's complete teachings through Mohammad (pbuh)
peace