"Will" is defined in this paper as the capacity to decide how to behave based on a processing of relevant information. A sequence of motivated behavior begins with informational inputs or stimuli. These come from three sources: the environment, one's physiology, and one's memory. These inputs lead to the formation of motives or awareness of a desirable future state, and motivation leads to subsequent action. Intrinsic motivation is based in the need of the individual to be competent and self-determining. The process of willing or the process of deciding how to behave is energized by intrinsic motivation. The fact of deciding, i.e., of being delf-determining, provides gratification of one's intrinsic needs. Denial of self-determination has serious consequences for the individual's physical and psychological well-being. (JD)