My senses of space, of distance, and of direction entirely...

My senses of space, of distance, and of direction entirely vanished. When I looked for the ground I sometimes looked down, sometimes up, sometimes left, sometimes right. I thought I was very high up when I would suddenly be thown to earth in a near vertical spin. I thought I was very low to the ground and I was pulled up to 3,000 feet in two minutes by the 500-horsepower motor. It danced, it pushed, it tossed. . . . Ah! la la!