Full Moon
Everything is visible, including whatever was being avoided. The full moon is traditionally associated with culmination and with emotions running closer to the surface.
What This Phase Suits
Completion, honest conversation, noticing what is really going on
What Is Actually Happening
At a full moon the Earth sits between the moon and the sun, so the face turned toward us is fully lit. The moon and sun are opposite in ecliptic longitude - a hundred and eighty degrees apart - and the moon rises as the sun sets.
Like the new moon, this is a precise instant rather than a night. A moon that looks full for three nights is only exactly full for a moment.
How It Is Read
Culmination and visibility. The opposition between sun and moon is read as tension between identity and need - what you are pointed at versus what you actually require - brought into full view.
It is traditionally the phase of completion and of things becoming undeniable, which follows reasonably from the symbolism of maximum illumination.
The Behaviour Claim
The belief that full moons drive crime, hospital admissions, births and sleeplessness has been studied extensively. The meta-analyses find no effect, and the studies are not marginal or contested.
The belief nonetheless persists strongly, particularly among people who work nights, and the mechanism is well understood: a busy shift during a full moon is memorable and gets filed as evidence, while a busy shift at any other time is just a shift.
The one genuine historical effect was light. Before electric lighting a full moon meant people could travel and work after dark, and more activity produces more of everything - a real cause that has been irrelevant for about a century.