I can understand the need for a title which attracts readers for this is what generally gets them to pick that book off the bookshop shelves or click on the Amazon titles list. However, if you're a well known author this probably does not apply. The author's fame is enough. For example. I am currently reading, for the seventh time a book by Ekhart Tolle called, A New Earth. With that title, the book could deal with just about anything.
With me, the book title usually comes to mind before I even start writing it. But sometimes the title is amended slightly. For example, I once wrote a book and called it 'The Way to Happiness' only to be told it might upset other people who already use this title for one of their programs. So I changed it to 'Who Stole Your Happiness?'
I'd like to be able to help you but my own successes are so slight that you could hardly use my titles as good examples. Here are some of them:
Searchtime Expired. The Sealers. Sailorboy Blue (all fiction) and Ghost Guidance and Automatic Writing, Where are you- me? Finger in the Stream, Divine Dialogue, Inner Quest - Our Search for Happiness, and Mind Matters Most (all to do with self-knowledge)
All those title were very meaningful to me but don't really grab - I realize that.
There's a lot of competition out there. However, if your book really has the right messages and makes a sale or two, then word is likely to get around.