Jimmy
I have always existed
My imagination doesn’t go beyond the five senses. For me, those five senses that God gave me are exquisite, magical and quite enough to be processed for thinking. Personally I find that touch is quite eye opening when processed through the brain. Especially when thinking of the infinite cosmos. One can begin to feel the heart. The recognition of oneself if you will.Use your imagination. That's the primary way humans interact with the otherworlds. It's not that complicated, except when it is.
Different cultures and traditions have, as expected, varying opinions and experiences on the matter. It would take quite some time to go into it, even just limiting to my own tradition. Honestly, I don't much care what is believed about these things and focus on the experience which is not atypical for Pagans. Words are routinely a poor conveyance for the experiences. In part because unless you've been there it just sounds... modern culture is pretty hostile to it, unfortunately. In spite of routinely engaging with otherworlds (e.g., "fictional" universes), which is a bit weird, but it is what it is.
Can’t image a sixth sense more capable of delivering experiences like our 5. I think God hit the mark rather nicely.