Every corporeal substance, so far forth as it is corporeal, has a natural fitness for resting in every place where it may be situated by itself beyond the sphere of influence of a body cognate with it.
I love roller coasters that make my stomach drop. One ride in Las Vegas, the Big Shot, straps you into a row of seats and catapults you into the air from the top of the Stratosphere Tower - then plummets back down. I ride it over and over; it's exhilarating.