He leaned back in the chair. "But there are other and subtler disturbances: culture shock, anomie, postoperation letdown, a few hints of bipolar disorder. Plus good old-fashioned human mulish impatience...Human consciousness is the highest and most complex metabolic function in all of nature. We can throw medical terms at the soul, but we can’t box it up. We simply can’t give people their identity the way we might give an injection; in the end, people have to find their own souls."