Still have the book. It's by Paramahansa Yogananda -- he is the person in your note.

His teachings live on through the The Self Realization Fellowship - a global non profit.

I have attended some services there. It like going to church but they add some meditation. It emphasizes the principles common to all religions.

I am going to look to see if there's a fellowship near me. I recently moved and am seeking to make new connections. Thanks for reminding me of this ✨🙏