When awareness is identified exclusively with the small self, there is often a lot of trying involved. It tries to find satisfaction and happiness. If it is on a spiritual path, it may try to “do meditation” (e.g. Shikantaza), or try to find Big Mind.
The Big Mind process shows us that there is only a shift that is needed. Instead of trying to find something, we allow awareness to become Big Mind, Shikantaza/nonseeking mind, etc. We call up the voice, and it is there.