Elijah fled from Samaria when he learned that King Ahab would have him killed. He was completely disheartened that he finally fell asleep under the broom tree. It was while he was sleeping that an angel touched him and directed him to get up and eat as he had a journey to make. The broom tree has since been a symbol of renewal and restoration.
I have just been under my broom tree when visiting angels woke me. The Holy Spirit renewed my withered soul as I am now directed to go and fulfill my mission.