What is a blue moon? The full moon of May 31, 2026
Tonight, May 31, 2026, the sky gives us something rare: a blue full moon. Don't let the name fool you, it won't look blue, but it's a perfect moment to pause, set intentions and enjoy your favorite pieces. At Theia Holistic Co., our holistic boutique in Puerto Rico, here's what it is and how to make the most of it.
What is a blue moon?
A “blue moon” is simply an extra full moon: the second full moon in the same month. Tonight's is the second of May 2026. They're so uncommon that they gave English the expression “once in a blue moon”: on average they happen only every 2 to 3 years. And this one has an extra detail: it's the smallest full moon of 2026 (a micromoon), because the Moon is at its farthest point from Earth. It looks beautiful rising in the east, right after sunset on May 31.
Why does the full moon invite you to pause?
In many cultures and traditions, the full moon has been seen as a time to close cycles, give thanks and set intentions. You don't need to believe in anything in particular: it's enough to take it as a beautiful excuse to slow down, breathe and reconnect with yourself. (It's a cultural tradition, not a promise of results.)
5 ways to make the most of the blue full moon
- Write down your intentions. Note what you want to let go of and what you want to invite in.
- “Charge” your crystals under the moon. In metaphysical practice, it's customary to leave crystals near a window or outdoors on the night of the full moon. Moonstone and selenite are the favorites.
- Light an intention incense. The Tribal Soul Moon Rituals incense or a classic palo santo are ideal (with ventilation and supervision).
- Set up your moon corner. An incense, a candle and your crystals turn any table into a small altar, and the Sagrada Madre Cosmos line fits the theme perfectly.
- Watch the moon. Step outside after sunset, breathe and enjoy. Simple is usually best.
Crystals and pieces many associate with the moon
- Moonstone: the favorite, as tumbled stones.
- Selenite: associated with light and calm.
- Labradorite: with bluish flashes, closely tied to the night.
- Carved moons: moon-shaped crystals in pyrite, a lovely detail for your altar.
Explore more in our crystal collection.
How to “charge” your crystals under the moon (step by step)
- Choose your pieces and clean them.
- Place them near a window in the moonlight, or somewhere safe outdoors.
- Leave them out overnight.
It's a symbolic, intention-based tradition, a way to pause and connect, not a process with proven effects. Tip: selenite shouldn't get wet, so keep it away from moisture if you leave it outside.
The blue moon is a reminder that some moments are worth celebrating. As we say at Theia: intention, not hype. 🌕 Explore our crystals and incense for the occasion.
The Theia team
For decorative and ritual/spiritual purposes only. No medical, therapeutic or health benefits are claimed.