Neptune, the planet of deception and spiritual enlightenment, rules the oppressed and abandoned: the misfits of society. On a higher level it rules visionaries, and those who are glamorous and charismatic. It represents spirituality, mysticism, and ideals.

Speaking personally, Neptune's house position and its aspects with other planets in your chart will describe spirituality, abstract thinking, illusion, disillusionment, and areas of your life where things aren't always what they seem. It rules derangement, guilt, persecution and describes the potential for experiences related to confinement, abandonment, and addiction or physical intolerance to drugs and alcohol.

Neptune, one of the outer, transpersonal planets, spends about thirteen years in each sign, taking around 164 years to move through all twelve signs. Since 164 years separate people born during its transit of one sign and those born when it returns, Neptune's significance in any sign is described as generational or historical.