Why are we here?
Every living person has a unique subjective experience of life. We see this all the time as different people who share the same experience have completely different perspectives on what they experienced.
I believe we are supposed to share our experiences. Each of our perspectives is similar to the facet of a gemstone, and it is by sharing our personal perspectives with others that as a collective we gain a greater understanding of our lives.
I call this The Facet Principal.