As I grow older I have been dissecting my life to see if it has been a good life, one worth keeping, one worth being proud of. I have questioned all my decisions, all my reactions, all my goods and bads.
If you are still young, in your teens, twenties, thirties, and maybe forties, you may not think this is important, but just wait, someday you will care about such things. Your dreams will haunt you with the facts. Your lack of friends, a mate, or satisfaction will show you if your life has been acceptable. And then if you are found wanting, you will suffer more than you have ever suffered during your thoughtless youth.
If you needlessly killed someone, raped, stole or lied, to the detriment of someone, you will be in hell on this earth, never mind in hell after death.
I have been fortunate, I was taught by a moral parent, I read the right books and even the bible and other religion's wisdom. I can say that I would not be afraid to greet and speak to everyone I have ever met or known.