This document discusses the nature of personal identity and how it evolves over time. It notes that a person's identity starts with their physical body and expands to include family, culture, nationality and more. However, the highest identity is one's shared identity with all of humanity. As people internalize concepts of global unity, they learn to sacrifice smaller identities when they conflict with the interests of mankind. True self-realization involves rising above restrictive identities to embrace one's shared identity with all truth-seekers working for the betterment of humanity.