Emily Dickinson is one of my favorite poets, but she was as crazy as Howard Hughes, Vincent Van Gogh, or Edgar Allen Poe.
Why was she so crazy. All i really know about her is that she is an american poet.
She dressed all in white, refused to leave her bedroom, and only sold 18 poems while she was alive, out of 1800 that she wrote.  This is the textbook definition of a hermit or recluse.
What made her so crazy though? Was it where she was raised, in Amherst, Massachusetts?
The cause of her reclusion is unknown to me, but i imagine it was due to some childhood trauma, bullying, or just being very different from other people.  Would that make sense?
The causes of mental disorders are usually very complex and they vary 
My favorite example from out modern era is the character Sheldon Cooper in the tv series "The Big Bang Theory".  His problem is autism, but he is definitely different from most people and doesn't seem to understand them.
The Big Bang Theory
The Big Bang Theory is an American television sitcom created by Chuck Lorre and Bill Prady, both of whom served as executive producers on the series, along with Steven Molaro. All three also served as head writers. The show premiered on CBS on September 24, 2007 and concluded on May 16, 2019, having broadcast a total of 279 episodes over 12 seasons.
The show originally centered on five characters living in Pasadena, California: Leonard Hofstadter and Sheldon Cooper, both physicists at Caltech,
an all-girls school for grades 6 to 12 in Wellesley, Massachusetts that boasts an impressive list of alumnae. There she studied mostly English, History, and Creative Writing. Her favorite poets included William Shakespeare, Emily Dickinson, Walt Whitman, and Edna St. Vincent Millay, but it was Allen Ginsberg's "Howl and Other Poems" which she carried in her purse through tenth grade.
For her bachelor's degree Olds returned to California where she earned her BA at Stanford University in 1964. Following this Olds once