What is volition?

This is a third attempt at formulating a question. This question and this question have been asked, but not formulated in a way that conveyed the question. So now, in a third attempt, the formulation shall be: **what is volition?** **EDIT:** The answers still do satisfy the question in the mind, although they are answers to the question on 'paper'. Apologies for the lack of skill in phrasing the question. Let us see if the following clears up what is being asked: *Imagine life as a series of moments; one moment after another in a line infinitely long. Imagine that there is a decision that must be made, to chose A or B, both equally likely to be chosen (for whatever reason, such as lack of understanding which is the right choice). This decision is present only in a single moment within the infinite series of moments. __What is that single moment of choice? What is that single moment made of, what substance, what phenomena? Who/What is doing the choosing? Why A over B, or B over A, if both are equally likely?__*