Michael Sternbach
an in "your opinion" what is that source....is it something outside of you or within you?
It's sort of a difficult question, because the deeper/higher you go, the more your self expands into All That Is.
It is good to have various oracles at hand, as each offers a unique perspective, and one may be more appropriate than another regarding a particular query. It is also sometimes helpful to use them in combination.
The strength of the pendulum is that it can give direct answers to very specific questions. Tarot is sometimes less precise, but its strength lies in that it can make you aware of things that you may not ever have considered otherwise. So it can teach you to think outside the box.