Temple of Healing is a Greekmyth technology in Age of Mythology that is available to worshipers of Apollo and can be researched at the Temple. Once researched, it causes Temples to heal nearby units by 20 HP per seconds as long as the unit is idle.
Apollo was the father of Asclepius, the god of medicine, whose symbol, the caduceus, is still used as a symbol for medicine today (though is often portrayed as the winged staff of Hermes, not the serpent-entwined staff of Asclepius).
"I begin to sing of Asclepius, son of Apollo and healer of sicknesses. In the Dotian plain fair Koronis, daughter of King Phlegyas, bare him, a great joy to men, a soother of cruel pangs. And so hail to you, lord: in my song I make my prayer to thee!"