I dance but i dont live, im wild but im contained, what am i?

A dapper half-moon perched upon the ledge, granting both clarity and style.

By broom I travel through the night, with whispered spells and flickering light. A pointed hat upon my head, old tales are where my name is said.

In pots it simmers, soft and white, A staple treat, a cook's delight. From east to west, fills every bowl, A humble grain with a timeless role.

Some of us sit atop icebergs Some of us hold all your trash Some of us lean til we topple Some of us are paid in cash