Is there anything you place so much importance on, that you will not share it?

There are some things that I put great importance on, and even have an emotional connection with. It may be a book, a song, a photograph, or any other subjective idea. Some of these I feel so deeply about that I am hesitant to share them, because I may be genuinely disappointed if the person I shared with didn’t appreciate it on the same level.

I think this is the closest I can come to understanding why some people prefer not to discuss their religious beliefs. However for me, this only applies to matters of opinion or taste. I am always more than happy to be proven wrong on matters of fact or evidence.

Is there anything you place this degree of importance on? Or am I just crazy?