A best friend is a piece of immortality placed into your heart. They will always love you. They will always remember you, and keep you in their heart. They may let you down, after all, they are human. But if they do, They will always be sorry and try to make it up to you.
Lovers come and go, children grow up and leave, family can be a burden, and pets die.
But a best friend is a piece of immortality. You will live forever in their heart.