What's actually happening
A Last Quarter Moon occurs when the Moon is ninety degrees behind the Sun in the zodiac — a waning square. The Moon is half-lit, now diminishing rather than growing.
For a Last Quarter in Sagittarius, the Moon is in Sagittarius while the Sun is in Pisces. The tension is between the truth-seeking, philosophical quality of the Moon and the receptive, dissolving quality of the Sun.
What the tradition makes of it
The Last Quarter is a "crisis of consciousness" — the recognition of what was genuinely learned in the cycle and what must be let go. Sagittarius brings the philosophical dimension to that moment of release. What is released is not the knowledge of the cycle but the assumptions that preceded it — the beliefs that were operating before the cycle began and that the cycle's experience has either confirmed or quietly refuted.
The Pisces Sun asks for a kind of surrender: not to abandon the search for meaning, but to allow the current framework to be incomplete rather than defended.
How to actually use it
Assess honestly what you believed at the beginning of this cycle and what you believe now. What has been confirmed? What has quietly shifted? What was being held with more certainty than the evidence supported? Release the conviction that the experience has not earned, and carry forward only what has been tested.
When in doubt
Ask what you believed at the beginning of this cycle that you can no longer believe in quite the same way — and whether you are willing to begin the next one without it.