I'm climbing a tall natural rock structure. I don't have any ropes or protection, and that concerns me. Maybe I should go back down. But each time I think about turning around, the next few moves seem so easy, that I decide to make the next few, and before long I find myself at the top of the structure, where there is a flat spot on which to sit. Whew! I made it! But I'm still very high up here, and climbing down is harder than climbing up.