also: はらのうち
in the belly; in the stomach
Literal physical location inside the belly or stomach. Often used in contexts of digestion or physical sensation.
I feel the food moving around in my stomach.
in one's heart of hearts; deep down; inwardly
Figurative use referring to one's true inner thoughts or feelings, often hidden from others. Similar to 心の中.
He was angry deep down, but he showed a smile.