What forms of bowing in worship are acceptable before the Lord?

The three forms of bowing in worship — bowing the head; bending the knees; and lowering the face until the forehead touches the ground — are acceptable before the Lord when one’s internal aim is to achieve the following goals, or at least some of them:

First: To feel the presence of God and be aware of God’s love for humanity and for heavenly beings, upon whom the splendor of God shines till they themselves become full of splendor in His eyes.

Second: To engage the soul of the believer in interaction with God’s saving work, so that she offers sincere repentance for her sins and trusts in the Forgiver of sins who endows righteousness.

Third: To humble the soul of the believer, so that she prays for all humanity to experience the wondrous salvation of God.

Fourth: To free the soul from selfishness, so that in our prostrations, we pray for all those who asked us to remember them in our prayers as well as those who did not ask.