Answer: Darkness… He feels that he needs new fuel, new motivations, as the old ones have already been depleted. He is revealing it now.
He sees spirituality in the Reflected Light of the upper Partzuf, in AHP of the upper one who is showing this to him as though he is in the hands of the upper one. Now the person feels that he has to grow to the same rung and adopt all of this himself. He has to come down from the hands of the upper one and achieve the same.
This happens every time on each new rung: First comes the small state (Katnut), and then the big state (Gadlut).
From the 1st part of the Daily Kabbalah Lesson 12/17/12, “Introduction to Talmud of Ten Sefirot”