When we Muslims pray or thank God he/she does so in the same fashion that was taught to Abraham, Moses, Jesus, and all of the previous prophets of Allah. You will find that when a Muslim prays he places his forehead on the ground in total submission to God Almighty. Let us see how the prophets (including Jesus, pbuh) prayed:

Genesis 17:3 "And Abram fell on his face: and God talked with him, saying,"

Genesis 17:17 "Then Abraham fell upon his face, and laughed, and said in his heart, Shall a child be born unto him that is an hundred years old? and shall Sarah, that is ninety years old, bear?"

Exodus 34:8 "And Moses made haste, and bowed his head toward the earth, and worshipped."

Numbers 16:20-22 "And the LORD spake unto Moses and unto Aaron, saying, Separate yourselves from among this congregation, that I may consume them in a moment. And they fell upon their faces, and said, O God, the God of the spirits of all flesh, shall one man sin, and wilt thou be wroth with all the congregation?"

Joshua 5:14 "And he said, Nay; but as captain of the host of the LORD am I now come. And Joshua fell on his face to the earth, and did worship, and said unto him, What saith my Lord unto his servant?"

Ezekiel 9:8 "And it came to pass, while they were slaying them, and I was left, that I fell upon my face, and cried, and said, Ah Lord GOD! wilt thou destroy all the residue of Israel in thy pouring out of thy fury upon Jerusalem?"

2 Chronicles 20:18 "And Jehoshaphat bowed his head with his face to the ground: and all Judah and the inhabitants of Jerusalem fell before the LORD, worshipping the LORD."

Ezekiel 11:13 "And it came to pass, when I prophesied, that Pelatiah the son of Benaiah died. Then fell I down upon my face, and cried with a loud voice, and said, Ah Lord GOD! wilt thou make a full end of the remnant of Israel?"

Matthew 17:6 "And when the disciples heard it, they fell on their face, and were sore afraid."

Matthew 26:39 "And he (Jesus) went a little farther, and fell on his face, and prayed, saying, O my Father, if it be possible, let this cup pass from me: nevertheless not as I will, but as thou wilt."