literally meaning to touch the sky and stand on the earth; describes a person of colossal stature, heroic character, or great courage

(idiom) to reach enlightenment immediately; also used to describe a person who repents and turns from evil to good

(variant form) to stand tall with one's feet on the ground and head reaching the sky; of indomitable spirit or immense stature

Literally "lay down the butcher's knife and become a Buddha on the spot"; used to mean that a person who has done evil can become good if they sincerely repent.

a person of vast learning or a human library; sometimes used to describe a person who has read many books but lacks practical application