Always end a conversation or a visit with a loved one on a happy note. It may be the last time you see each other. Never underestimate the mentally ill. Never treat a person who says they have no hope lightly. They are dieing from the inside out, and they deperately want to find a way out.
Fear is powerful, it takes more than comforting words to overcome.
Some of us are bipartite. It's never too late, that's what they invented death for. Never stop dreaming. When someone you love shares their heart, listen intently, and remember those conversations well. Come to peace with your regrets.