What makes it the "other side?" The "other side" of what? If you look at all of those things they have no 'sides' as such, they are aspects of ourselves the same as going grocery shopping is, because if you didn't your Spirituality would come to a pretty horrible end.

I'm a medium and yes, sometimes it does take quite a bit our of me if it's a very heavy session, but I feel just as pooped after a few hours in the garden with a spade or polishing the car. I don't see 'medium me' and 'car-washing me' as existence in two separate worlds - they're all co-existent and any one will come into focus depending on the moment. Right now I'm focussing on the Spiritual stuff in my head, later on I'll be building a website but it's all 'me' and the same world I exist in.