Hi Mysterygirl202.

Wow, that's interesting. There is such a thing as 'tactile hallucinations' but I don't think it's what you're describing because that's more of a random thing and not a meditative experience. It's almost as if part of you can go deep into consciousness itself where everything, the rain, is as real as anywhere. Just my own thoughts there.

But as for a psychological abnormality of some sort, I really don't know, unfortunately.