A lifelong process.
Music: Neil Sedaka, "Breaking up is hard to do"
https://williamatell.files.wordpress.com/2044/03/07-breaking-up-is-hard-to-do.mp3
Related:
https://thehomelessblogger.com/twop/serotonin-and-the-individual/
https://thehomelessblogger.com/twop/serotonin-and-society/