This image appeared in my thoughts very recently, and strongly so. If you feel you can offer an insightful spiritual interpretation of these symbols together, by all means please leave a comment. I think I have a pretty good grasp of its meaning, but I welcome other interpretations.

Made some improvements and touch-ups to the original image. The previous version of this image will be moved to scraps soon.

I've done some research into the meanings of the three symbols presented in this image:

The Ouroboros represents cyclicality, death and rebirth, destruction and recreation, and the infinite and everlasting. It can also represent the dual nature of all things, and is often depicted with light and dark halves for this reason. The Ouroboros is used as a purifying glyph in Alchemy, and the phrase "All is one" is often connotated with it. Taken in such a context, the Ouroboros can also mean unification or wholeness.

The Taijitu is a common representation of the duality of yin and yang. Yin yang represents dualities of all sorts, and describes the relationship between them - i.e. you cannot have darkness without light, hot without cold, north without south, and vice versa. Together, each defines the other, and in a closed system you will always have equal amounts of both, though their concentrations in any one area will ebb and flow over time.

The phoenix is a mythological bird with references dating all the way back to Egypt, where it was known as the Bennu bird, which was depicted as a grey, purple, blue, or white heron instead of the more commonly recognized 'firebird' imagery introduced by Greece and other cultures. The phoenix is very long lived (actual lifespans vary by mythology, but are usually at least 500 years.) When nearing the end of its natural lifespan, it builds a nest for itself out of twigs (or cinnamon and other spices, according to some legends). Once complete, it immolates itself and the nest, destroying itself. A young phoenix arises from the ashes in some form and, once strong enough tends to the remains of its parent. According to Greek/Egyptian legends, this involved wrapping the ashes of its progenitor in an egg of myrrh, then flying and depositing it at Heliopolis, the city of the sun. The phoenix represents peace, fire, justice, loyalty, honesty, decorum, reincarnation, death and rebirth, renewal, and immortality. It is said to be benevolent, feeding only on morning dew (or carrion), and crushing nothing upon which it alights. Its rare appearance is said to foreshadow a great event, and its touch is said to bring great fortune.

Something else somewhat relevant that appeared while doing research ... a mysterious popup appeared on a particular webpage, bearing only the phrase: "Anál nathrach, orth' bháis's bethad, do chél dénmha." Supposedly this phrase was uttered by Merlin as a chant while weaving his magicks. It's in a very old tongue, and roughly translated it means: "Serpent's breath, charm of death and life, thy omen of making." Seemed strangely relevant, and so I mention it.

The Ouroboros used in this image is a derivative work of public domain art found on Wikipedia, posted by user AnonMoos. The Yin-Yang symbol is too old to be anything but public domain. The phoenix is mine. I drew it by hand in GIMP using a pair of other images loosely for references. I'm actually a little impressed that something I drew turned out that well. Something was guiding my hand as I drew, I swear ...