Why did jazz musician sun ra leave college?

It is very interesting and controversial story, same as personality and carrier of Sun Ra, themselves. Sun Ra was probably forced to leave college because of financial problems and his growing sense of isolation, but he claimed that he had a vision in which the aliens talked to him and told him to leave college and to play music, because that is his mission. He explained that, in this vision, he found him self on the planet that he recognized as Saturn, and that aliens told him that the world is going into complete chaos, and that he should speak through music and that the world will hear. Sun Ra was an American jazz composer, bandleader, pianist and synthesizer player, known for his experimental approach to the music and controversial personality.

The answer is a : varying the size of objects or subjects, so that some are smaller than others and the illusion of depth is created.hope this : )