Will, or purposeful action, is the third support of the self apart from thinking and feeling. Because it is bound up with motivation and valuation it seems closer to feeling, but action is independent of the state of feeling while requiring something like thought to define its intention - what is called instinct is the prototype of positing thought. Resistance to action is a type of feeling, so action originates in the same level of self that was described as noesis, the place from which and never towards which. A feeling can be viewed as a disengaged action, action in neutral. Purposive action or exertion of will, is a modality that adds to the self, confirms it, consolidates it. Will is not, and perhaps can't be exerted continuously over extended periods; it has a special relationship to time. It alternates with periods of passivity or surrender. The most obvious of these is in sleep, although dreams contain a sort of ghost of purposive action. Dreams seem to be a pointed commentary or critique of purposive action, frayed action, oddly fragmented and discontinuous. Habit also can take the place of will in the waking state. Detached from positive action the continuous application of will counts as a salient form of presence. When it lapses and  attention drifts then it seems in retrospect as if you have been absent, a state fully adequate to itself with no need for you at all.