Platonic Love

The 5 platonic solids are tetrahedron, hexahedron, octahedron, dodecahedron, and icosahedron. They are the only 5 convex regular solids possible. Being convex means The solid doesn't cave in or protrude. A cube is convex, but a christmas star is not.

Plato thought the first 4 solids are related to the 4 classical elements, fire is tetrahedron, earth is hexahedron, air is octahedron, and water is icosahedron. Plato had his philosohical fantasy why this is so. He didn't really know what dodecahdron is related to.