I have read that you can contact the sigil of a demon through a pendulum. Who knows this technique? How does it work?
Does it need beside the pendulum some elements like fire, water and blood as a gateway?
You can contact any entity using a pendulum and sigil. However, it’s mostly yes or no things, you can hover the pendulum over the sigil and connect with the energy within the sigil. Either evocation or invocation whichever the individual prefers.