H.P. Lovecraft stuff.

If anyone knows the work of H.P. Lovecraft, I've heard that a lot of his stories were given to him by real life monsters and supernatural spirits. The gods and creatures in his works were sent to him spiritually and are actually real.

I can't say I believe it - but it still could make for an interesting topic. If what is real and what is not is all based on who believes it, could a story like this actually happen?