Mental Health
It's like the underlying fabric of existence (which believe it or not, is woven and spun in real time by the furious machinery of every human mind) has, for him, taken the form of a perfectly lukewarm full-body glove, the interior of which is unsmooth without being the slightest bit uncomfortable. His mind is heavy with the pleasant satisfaction of having borne a great weight for a long time, coming now to rest, briefly stretch, and rest again. Of course there will be more, at some uncertain (and in his current state, absolutely abstract) future time. But for now, there is rest.