What's actually happening
A Full Moon happens when the Moon stands opposite the Sun from Earth's point of view. The lunar face is fully illuminated. A Full Moon in Virgo means the Moon is in Virgo while the Sun is in Pisces — the axis of the practical and the transcendent, of the particular and the diffuse.
The geometry is one of maximum contrast between what can be done and what can be imagined.
What the tradition makes of it
Full Moons are culmination points. What was seeded at the New Moon has enough light on it to be seen. Virgo adds a quality of precise assessment to the culmination: the work that has been in process is now visible enough to be evaluated on its actual terms, not its ideal ones.
The Pisces Sun holds the vision and the longing for the work to be more than it is. The Virgo Moon holds the honest account of what it actually is. The tension between them is the productive gap between aspiration and execution — and this phase illuminates it without cruelty.
How to actually use it
Assess the work honestly: what has actually been accomplished versus what was intended. This is good weather for productive self-critique, for finishing what is nearly complete, and for making the specific adjustment that would move the work from adequate to genuinely good.
The shadow is the perfectionism that makes the assessment cruel rather than useful.
When in doubt
Ask what the work actually needs — not in the ideal version, but in the version that is actually in your hands — and whether you are willing to do that specific thing.