What magic does Taoism have to communicate people with ghosts and gods?

The simplest answer is what an old man told me: people can be sincere and God can feel it.

As for magic, it's hard to say, because Taoism actually doesn't have as much messy magic as TV movies say.

Taoism is similar to asking God, mainly used in scientific instruments. However, only those with high academic performance are qualified to do it. Ordinary people are not qualified to ask God.

If Gao Gong wants to understand God, he must have the basis of internal training.

Now some people claim to be connected with God, but in fact they are connected with some left ways. They often invite Yin, not God. So these are not orthodoxy. This left-handed magic will do harm to the practitioner himself.