The methods of gaining that realization are many, but there are four principal ones: by the heart, by the head, by action, by repose. A person must choose from among these four different methods of developing himself and preparing himself to journey on the way, the only way, which is called mysticism. No religion can call it its own, but it is the way of all religions. No church can say that it owns it, for it belongs to all churches. No one can say that his is the only way. It is the same way as all others have to go.