I want to introduce you all to a guy that I came across online. He has written a book about Kriya ego in which he tries to bust a lot of myths. After looking at the title and description, I went to his website. There is not much information about him but he has a free pdf. I haven't read the actual book he has published about kriya yoga yet, but what he says in that free book is completely true. It is not about kriya yoga but something that is in general about enlightenment. I can certainly say that what he says in that pdf file is the essence of the whole thing and will give you a clear understanding of what the spiritual path is all about. Since he has done a good job on that, I am letting you know about him. For more info, go here: http://realyoga.info/ If you understand what is said in that free book, that is all there is know about spiritual enlightenment. He has worded everything quite well.