I recently finished reading a book about Kundalini meditation by Kathryn McCusker. I found the book in my local library. I got it because I had been reading a lot of material on the internet about chakras. Chakras are the Hindu belief of spiritual power in the body.
I will do a post about chakras and explain them more fully. But one thing I will say is that yoga features a lot in the book. Sadly I am not flexible enough to attempt it!