Quote from : The Mists of Avalon Book

And then a memory from Avalon surfaced in her mind, something she had not thought of for a decade; one of the Druids, giving instruction in the secret wisdom to the young priestesses, had said, If you would have the message of the Gods to direct your life, look for that which repeats, again and again; for this is the message given you by the Gods, the karmic lesson you must learn for this incarnation. It comes again and again until you have made it part of your soul and your enduring spirit.