Fundamental Change

Are we who we have always been and always will be or is it possible for a person to change in a deep and fundamental way? This is more than just the growth of experience or learning. This is the sort of change that almost feels as if itrestructures us at a base level. Be it in times of tragedy, times of triumph, or moments of awe and unimaginable experience, who we are before and after is noticeably different. Sounds like a good discussion starter!