I suppose that in the same way the body sometimes hits a wall and says, "Enough, time to rest," the mind and psyche do as well.
Whether it's all been goodness and light or darkness and despair, the time comes when there must be a step taken back, a reaction to it all and this, for some of us, is when anxiety and depression flair, when no matter how blue the sky, how blossom-laden the air, how sweetly the birds call, the head and heart feel stone heavy and fear and panic flood in to fill the rock-lined places.
Quite unfortunately, there is no way to take the mind to bed, to rest and restore it. It jabbers on and on with its misinformation, its lying lies, its cruel and dark deceits.
I believe I'd better take a walk.