There is no such thing as a secret even though some secret holders believe great power is held in that sealing. When you tell someone a secret — and ask them to keep the faith while not acting on the information — you create a false covenant by believing people will refuse to act in their own best interest. If you are treacherous, you are fully aware of that false covenant, and you will exploit that restlessness to your advantage.
If you buy a book, do you own that book or have you only rented the content in that book? Under the current Copyright law, you may loan that book and share that book, but you may not copy the book and give those copies to your friends or sell those copies to your enemies.