come to one's senses

[H]e dropped from his seat at my side, like a man struck dead. The stifling heat in the theater had proved too much for him. We carried him out at once into the fresh air. When he came to his senses, my friend entreated me to leave him, and see the end of the play.

Dick had not been altogether in his right senses. . . . He found his mother weeping as though her heart would break; whereat his own heart smote him so that he came to his senses there and then, and knelt in humility and shame at her feet.