When Adam was afflicted by the slip, he wept a great deal and at the end made a prostration of repentance. While he was making the prostration, his repentance was accepted. Gabriel came and told Adam that his repentance had been accepted. Adam lifted his head from the prostration and heard this good news from Gabriel. In gratitude for receiving this good news, he hurried to make another prostration. The first was the prostration of apology, and the second the prostration of gratitude. This is a teaching for the servants: During the prayer, perform two prostrations, one to apologize for slips and the other to show gratitude for blessings.It has also been said that of the two prostrations that the servant makes in the state of worship, one recounts the beginningless state, the day when the Exalted Lord said, “Am I not your Lord?” [7:172]. Everyone fell down in prostration in that state on hearing the address of the Real. The other prostration is the likeness of the endless state at the time of seeing the Majestic Lord in paradise, as has come in the report: “When a light shines for them, they fall down in prostration. Then it is said to them, 'This is not the time for prostration-this is the time for finding.'” One prostration is in the state of finding, the other in the state of witnessing. When the faithful servant makes these two prostrations at the moment of prayer and the time of whispering in secret, he should number himself among those exalted ones. He should consider the first prostration as the state of finding and he should consider the second prostration as the state of witnessing. Then it will be as if he passes from the Beginningless to the Endless in prostration. https://www.google.com/search?q=prostration
