1 Kings 3:5

In a prophetic dream, or ecstasy. His mind had been so filled with the desire of wisdom, that the same thoughts recurred to him while he slept; and, as he had entertained them voluntarily before, he acquired fresh merit even during that time; as a man, who indulges sensual affections, becomes responsible for the accidents of the night. (St. Thomas Aquinas, [Summa Theologiae] 1. 2. q. 113. a. 2. and 2. 2. 9. 154. a. 5.) (St. Augustine, de Gen. ad lit. xii. 15.) (Calmet)