On this day in 1973, Pink Floyd released their legendary album Dark Side of the Moon. Arguably the first ever “concept” album, its songs explore the nature of the human experience from childhood’s new experiences through growing older and finally onto thoughts on what comes next. Covering our life cycle – a topic mystics and philosophers have pondered forever, while the record’s title may not be a direct astrological reference, it definitely has the signature marks of mystical Neptune, ruler of Pisces.