If I take the OP video's advice, and follow Jesus in prayer, both in His example, and teaching, I am more than glad to do so:
Matthew 6:5-8
And when thou prayest, thou shalt not be as the hypocrites are: for they love to pray standing in the synagogues and in the corners of the streets, that they may be seen of men. Verily I say unto you, They have their reward. But thou, when thou prayest, enter into thy closet, and when thou hast shut thy door, pray to thy Father which is in secret; and thy Father which seeth in secret shall reward thee openly. But when ye pray, use not vain repetitions, as the heathen do: for they think that they shall be heard for their much speaking. Be not ye therefore like unto them: for your Father knoweth what things ye have need of, before ye ask him.
Commentary: I learn from Christ that religious people may pray in such a manner that they desire to be seen by people to be pious or religious. They seek glory and honor from men rather than from God alone. Jesus is rebuking the outward show of religion and exhorting His disciples to genuine, sincere prayer toward God from the heart. The Lord doesn't want me to make an open show of my prayers or use repitious words supposing that God will hear me if I say something over and over again.
How then does the Lord want me to pray? In what manner?
"After this manner therefore pray ye: Our Father which art in heaven, Hallowed be thy name.Thy kingdom come, Thy will be done in earth, as it is in heaven. Give us this day our daily bread. And forgive us our debts, as we forgive our debtors. And lead us not into temptation, but deliver us from evil: For thine is the kingdom, and the power, and the glory, for ever. Amen." Matthew 6:9-13
Commentary: Given the previously mentioned verses, the Lord is not telling us to say these words over and over again. He is guiding our understanding of the content of prayers before God. This is a pattern to follow, not a ritual.
Jesus often went away, alone, to pray. Matthew 14:23; Mark 1:35; Mark 6:46; Luke 5:16
Much can be said concerning prayer, but much is illustrated by the following parable of the Lord:
Luke 18
"And he spake a parable unto them to this end, that men ought always to pray, and not to faint; Saying, There was in a city a judge, which feared not God, neither regarded man: And there was a widow in that city; and she came unto him, saying, Avenge me of mine adversary. And he would not for a while: but afterward he said within himself, Though I fear not God, nor regard man; Yet because this widow troubleth me, I will avenge her, lest by her continual coming she weary me. And the Lord said, Hear what the unjust judge saith. And shall not God avenge his own elect, which cry day and night unto him, though he bear long with them? I tell you that he will avenge them speedily. Nevertheless when the Son of man cometh, shall he find faith on the earth?
And he spake this parable unto certain which trusted in themselves that they were righteous, and despised others: Two men went up into the temple to pray; the one a Pharisee, and the other a publican. The Pharisee stood and prayed thus with himself, God, I thank thee, that I am not as other men are, extortioners, unjust, adulterers, or even as this publican. I fast twice in the week, I give tithes of all that I possess. And the publican, standing afar off, would not lift up so much as his eyes unto heaven, but smote upon his breast, saying, God be merciful to me a sinner. I tell you, this man went down to his house justified rather than the other: for every one that exalteth himself shall be abased; and he that humbleth himself shall be exalted."
Again, we see the Lord laying the emphasis upon the heart, and not the outward form. For those not familliar, a publican in Jesus' day was a person (Jew) contracted by the Roman government, usually as a tax collector, and were despised by their fellow Jews. They were seen as traitors and sometimes they embezzeld money from their kinsmen. Imagine the nation of your people being occuppied by a foreign power, and one of yourselves contracts into the employment of that people to collect taxes from you, and even collects more than is due for their own personal gain. You would not be very happy with that person.
Now, consider that your neighbor, or friend, or family member is a devout Muslim, praying 5 times a day, giving to the poor, practicing righteousness, et. He goes to his prayers and prays something similiar to what is told in Jesus' parable. And so also the tax collector. Jesus is saying that the tax collector went away justified before God, not the religious man.
Why? Because the religious man trusted in himself, his deeds and actions, that he is righteous before God. But the publican, feeling and knowing himself a sinner, sought the forgiveness and mercy of God. He had no righteousness of his own to trust in, nor would pretend to have it. This was the case with the pious man, although he did not know it. The pious man was righteous in his own eyes, and perhaps in the eyes of others, but not before the All Holy God. All our righteousness is as filthy rags before His eyes.
I heard one person make the remark concerning a sheep. A shepherd had a beutiful flock of sheep, but one ewe was brilliantly white. Everyone admired his sheep. It was without spot and without blemish. Everyone marveled at how beutifully white and pure the sheep's wool was. One day, snow fell and was of such purity of white as only snow can be, that this beautiful sheep looked dirty against the brightness and purity of the snow.
We sometimes see ourselves as righteous, in our own estimation, against the backdrop of the impious, irreligious, apostates, et. But hold our righteousness up to the backdrop of the holiness of Almighty God, and every one of us would cover our mouth with our hands and repent in dust and ashes. So was the case with the prophet Elijah when He saw the glory of Almighty God and cried, "Woe is me, for I am undone; because I am a man of unclean lips, and I dwell in the midst of a people of unclean lips: for mine eyes have seen the King, the Lord of Hosts." Isaiah 6:5
We Christians may posture our bodies uprightly, lift our eyes to heaven to pray, lower our gaze while we pray, kneel, prostrate ourselves, or beat our chests in repentance before God, but if all this is mere self-righteousness and repitiation, it is for nothing. God said in David, "The sacrifices of God are a broken spirit: a broken and contrite heart, O God, thou wilt not despise." Psalm 51:17
This, and what Sol has shared, is why when true Christians hear what is given in the OP, it carries no weight or force. What I heard from the man in the video is a call to outward form, such things as can be seen of men and regarded in their eyes as pious and holy. What I hear from God by His Son is that He looks upon my heart. God does not see as man sees, for man looks on the outward appearance, but God looks upon the heart.
"But the LORD said unto Samuel, Look not on his countenance, or on the height of his stature; because I have refused him: for the LORD seeth not as man seeth; for man looketh on the outward appearance, but the LORD looketh on the heart." 1 Samuel 16:7
(Sorry, but I'm not in the habit of whipping out my camera in church and taking videos of people while the pray.) On one hand, it is amazing to think that a man could fit in such a tiny space, but on the other hand, when one thinks of the fact that this man is trading any earthly comfort at that moment, setting aside any physical feelings and focusing entirely on God, then how amazing it is that he has fallen down in prostration despite his surroundings. (In these churches it would totally be appropriate for someone to step into the aisle to pray or to go down front where there is room, but these people are so focused on God that their mind is not thinking of moving to a bigger space in that moment.)