Actually, its probably more like a pendulum; if you can immagine that swing from a, to b, to a again, but it'll never actually come to a rest. there will always be the most minute amount of energy there. or; if you'd prefer a different scenario; imagine three ball bearings of equal mass, floating in space. two of the ball-bearings are stuck together, due to their own gravity. a third is launched at them, they come crashing together, and one of them flies back out. then there is a deceleration, an acceleration, and it repeats. Both of these machines could be described as perpetual motion machines. This does relate to your experience; you wouldn't be able to remember 100% of a DMT experience due to its nature. 99.9999999% is good enough, isn't it?
shoe
ॐ भूर्भुव: स्व: तत्सवितुर्वरेण्यं । भर्गो देवस्य धीमहि, धीयो यो न: प्रचोदयात्
Love, Gratittude, Compassion, Fearlessness!