(informal) one's own mother

Kyūjitai form of 紅楼夢: Dream of the Red Chamber

(idiomatic) feel relieved

取る: to take / 取る: (board games) to capture / 取る: to pick up / 取る: to pick up on; to grasp / 取る: to earn / 取る: to remove (one's glasses, etc.) / 撮る, 録る: to photograph, film, or record