Running is meditation for me. No music, just me and my thoughts, while I fold deep into that familiar place in my head. It's as real a space to me as a physical place - just inner not outer.
I get into the sensory deprivation tank for an hour about once a week. It's great in there. Completely dark, completely quiet. Again, it's familiar. The interior of our minds is a real place. Once you get to know your inner world, the outside world should be a doddle.