A historical period corresponding to the astrological sign of Aquarius, concerning the timing of which (past, present, or future) there is a wide range of views.
The period, roughly from the mid-1960s to the early-1970s, when New Age culture and the hippie movement were at their peaks, associated with belief in enhanced spiritual enlightenment, universal love, and personal liberation.
Containing elements in appropriate proportion; proportionately weighted on all dimensions and therefore unlikely to tip over.