A sikh is one who walks in the way of the Guru. To understand what a Sikh is, one must look into what the Guru has taught his sikhs.
Blessed, blessed is that Sikh of the Guru, who goes and falls at the Feet of the True Guru.
Blessed, blessed is that Sikh of the Guru, who with his mouth, utters the Name of the Lord.
Blessed, blessed is that Sikh of the Guru, whose mind, upon hearing the Lord's Name, becomes blissful.
Blessed, blessed is that Sikh of the Guru, who serves the True Guru, and so obtains the Lord's Name.
I bow forever in deepest respect to that Sikh of the Guru, who walks in the Way of the Guru. ||18||
Sikhs are beings who are taught to serve humanity. Not to see any one as lower then them, and to see them selves as lower then everyone:
ham nehee cha

gae buraa nehee koe ||
I am not good; no one is bad.
This is the ultimate state of humility. to be judgment free of everyone, and to look upon everyone with an equal eye.
the 3 main principles of sikhi is to:
Earn an honest living
To share what they have
To continuously meditate on Gods name
The word Sikh itself means learner, or student, and the true Guru (enlightener-taker from darkness to light) is the teacher.
erm... ders so much to say, n i fink il go off topic so il leav it at dat 4 now.