masculine + feminine

<n>Orchid</n>, a 1988 photograph by <n>Robert Mapplethorpe</n>.

An alchemical drawing of the <n>Rebis</n>, attributed to <n>Donato d'Eremita da Roccadevandro</n>.

A diagram of the <n>12 Powers of Man</n>, a concept from author <n>Charles Fillmore</n>.

A <n>Yin and Yang Tree Tattoo Design</n>.

Conceptual artwork <n>Wave Motion I</n> (1976) by Japanese artist <n>Keiji Uematsu</n>.

A diagram titled <n>Primordial Forces Generate Tai Chi</n> illustrates concepts from Taoist philosophy.