Being a true friend is a mutual process, they are the sparse gift and we should show our improvement more often, who accept us for who we are, and no matter what happens they're there by our side.
We know we've done well in life when a group of people turn to to celebrate our works, success and to be our shoulder to weep on. Those are the peoples we may trust spontaneously and wholeheartedly. Having these people in life means they are the true friend to us, we're to them too.
A friendship can break easily, if you only take and take, or have to give and have to take from the man have other side, in a strong friendship.
So, if have a group of people who are there by our side for years to come, we can deem that we've done in life, enough.