Pendulum has been my most-used method of finding out what is true for me; but I recognise that there are other methods, and all that one is skilled in using are useful to employ in navigating one's way through life. The pendulum I use is an aventurine tear-drop shaped piece that I picked up for $5 in Hawaii, after I lost the home-made one I had, on the plane. It has served me very well! Pendulum is so versatle - there are many ways to use it!