Freshening of perception is the best thing in the world. Sleep does it. So does advanced meditation.
Complete withdrawal from something potentiates it. Like how sleep potentiates waking.
So complete withdrawal from everything should potentiate everything. Deep sleep does exactly that. Everything needs to smoothly flow in its cycles. A repressed part creates a desire. But, all desires are non-substantial by themselves like pressure difference creates a hurricane. The hurricane is non-substantial, it is simply at outcome of movement in other invisible forces. When everything is in perfect flow, there is nothing to do or achieve besides just being and free falling.
Journey to the Abstract 