Hate to break this to you, but that's exactly what happens IRL. Every decision, everything we do, everything we experience alters our basic awareness either slightly or significantly. Every day is different, and the reason is because every day, you are different. Every day, you have changed. Every day, you have been renewed. Your awareness alters slightly and you don't know this because it's not a fundamental shift, but a natural progression. Eventually, when you've known a person for years, a sudden realization hits you and you look that person in the eye and say, "You've changed." The truth is that person has been changing every day. It simply took a long time for the change to be significant enough for you to notice.
Life is a work in progress.