'Dreams' in the Bible

So Saul inquired of the Lord, but the Lord did not answer him, either by dreams or by Urim [used like lots by the priest to determine the will of God] or by prophets.

Then Samuel said to Saul, “Why have you disturbed me by bringing me up?” Saul answered, “I am greatly distressed; for the Philistines are making war against me, and God has left me and no longer answers me, either through prophets or by dreams; therefore I have called you to make known to me what I should do.”