Is it spiritually safe to visit inside a pyramid?

Yes it is safe, pyramids have no significant power, satanists believe they do, but they don't really. You go in pyramids all the time, like someone's house with it's pyramid shaped roof. Signs and symbols have no relevance to God or his people, because all Gods does is speak some words, and it all blows away, so it's all nothing really.

as such they are built for astral energies so beware and best to leave well alone the best temple is the heart within at the soul level.

I have visited the pyramids of Giza, and had no ill effects. My wife went inside (I'm claustrophobic and stayed outside). She described the experience as informative and enlightening, but not as a spiritual experience.

It is c-o-m-p-l-e-t-e-l-y & spiritually safe to visit inside a pyramid.

I was hoping the pyramid power would suck the demons right out of my head and cast the demons back to Mars and the Space Aliens were they belong. Thank you Jesus!

They were invented by Joseph, for grain storage. You have nothing to worry about.

Remember the curses? There's probably more

You'll be safe as long as you're wearing your tin foil hat.

They don't carry "energy" from "higher dimensions".

They were made by humans, however advanced. You should be okay.