I have them all the time, I don't know if I could pick just one. What kind are you looking for? Paranormal as in seeing ghosts, hearing them or feeling presences? And spiritual as in being in the presence of spirits - I'm assuming you aren't talking about a religious experience which would fall into another category altogether. I have them more often in late summer through the early winter - experiences with ghostly or trapped energy. And as far as spiritual where I encounter something or an energy presence of a sentient kind or a guide of some kind - that can happen any time.