Burning and Healing
What is so interesting about the phoenix is that every so often, usually something like every hundred or thousand years, depending on the story or legend, the bird will burst into flame and burn. From the ashes of the old phoenix, a new one will rise. Some legends say there is only one phoenix, endlessly searching the world for a mate.

The pearly tears of the phoenix have the ability to heal. It's song is the song of joy, bringing new hope into the hearts of the most despaired.

Books
If you like phoenixes, (and dragons), a book I really enjoyed about the both of them is Dragon and Phoenix by Joanne Bertin.