One secret that perhaps they have never shared. Some of the things people have been through that almost no one else knows about would just break the hearts of others if told. Be kind for you never know what has really happened in another person's life.
The semi-colon appears where a sentence could end, but instead it goes on. This is becoming a symbol for suicide prevention. Don't use a period in your life; use a semi-colon. You have more to say, your story isn't finished.