The upcoming full moon on December 15th is traditionally called the Cold Moon and takes place in the curious and talkative sign of Gemini. As the last full moon of 2024, it’s the perfect time to reflect on the past year, wrap up unfinished business, and let go of anything that’s holding you back. This lunar energy encourages you to let go of limiting beliefs and prepare for new opportunities.

The timing couldn’t be better – just a few hours after the full moon, Mercury’s retrograde ends, giving your ideas and plans even more momentum. This makes it a great moment to reflect and let go as you make space for the new year.

While the energy of this full moon is wonderful for letting go, it is also a great time for traditional manifestation practices. Try to focus on your thoughts and words as Gemini rules communication. This article looks at the manifestation rituals you can try during the last full moon of 2024.

A diary for your future self

The December full moon is all about communication, making it the perfect time to try out a written manifestation practice. A useful way to harness this energy is to write a letter to your future self. This is how you can do it:

Create a cozy and peaceful atmosphere on the full moon night. Then start writing a letter to the version of you that exists a year from now.

In your letter, talk about the things you’re committing to during this full moon—what thoughts or habits you’re letting go of, what it will feel like to free yourself from limitations, and what you’re making room for in your life. Share how you are laying the foundation for the amazing things your future self will have accomplished by this time next year. You can even congratulate yourself in advance, as if all your goals have already come true.

When you’re finished, seal the letter in an envelope and store it in a safe place. Plan to open it at the next Gemini full moon on December 4, 2025. Until then, let this letter serve as a reminder of the promises you made to yourself. Use it as motivation to stay true to your intentions.

A full moon ritual after Mercury retrograde

Mercury’s retrograde ends at 3:56 p.m. ET on December 15, just a few hours after the full moon. This is a powerful moment, especially since the full moon is in Gemini, one of Mercury’s signs. If you’re still feeling the lingering effects of the retrograde, a post-retrograde clarity ritual is a great way to harness this lunar energy. You can incorporate candle magic as a symbol of the end of the retrograde, which ends in Sagittarius, a fire sign.

Begin performing the ritual in the evening, when the lunar energy is at its strongest and Mercury retrograde has ended.

First light the white candle because it symbolizes clarity and clearing the way. Focus on the flame, meditate, and think about everything you learned or worked through during the regression. Write down any thoughts or realizations you want to remember or let go of.

Next, light the blue candle, which represents communication, connection and the expression of your ideas – key themes of Gemini and Mercury. As you light the blue candle, imagine the flame burning away any false narratives or limiting thoughts. Write down any affirmations that relate to your personal growth and insights gained.

Festive full moon with friends

Gemini energy is all about social connection, and now that Mercury retrograde has ended, this full moon is the perfect time to get together with friends for a group manifestation session. On the night of the full moon, invite a circle of trusted friends to your home or another cozy place. Ask everyone to bring a journal and a pen. To make it even more festive, you can offer some holiday treats or ask everyone to bring something special for the full moon.

The beauty of Gemini’s curious and talkative nature is that simply connecting with others can be a powerful ritual. Engaging in conversations helps increase the energy around you and keeps you present. Share your intentions, goals, and reflections with your friends, and be a supportive listener when they share their own. Once the mood feels right, keep a journal for everyone. They can list the old beliefs or narratives they are ready to let go of and what new stories they would like to incorporate into their lives this full moon.

This group activity can amplify your manifestation energy, especially if you focus on unlocking and creating new, powerful stories.