Yogis love the moon! However, yoga practice is not recommended during full and new moon days;
The moon exerts gravitational pull on water as we can observe by tides and since the human body consists of at least 60% of water, it must be affecting us as well.
During a full moon the sun and the moon are in opposition to each another while in the new moon cycle they are in conjunction. These positions create different energies on the earth, which correlate to the cycles of the breath.
According to the ashtanga tradition, the full moon relates to the end of the inhalation; the rising of prana (energy). This is the vital life source that rises upward, expands and increases energy both physically and mentally. As a result we feel energetic and emotional, but not well grounded. Conversely, the new moon relates to the end of the exhalation; the emerging apana (downward energy). This is understood to develop feelings of earthiness, calmness, but also of physical exhaustion.
Honouring these cycles is a way of aligning ourselves to the planetary forces that are always around. They also help us to live and breathe in harmony with nature.
You can make the most of this highly energetic time, by tuning yourself inwardly to the energies beyond materialism and toward the infinite possibilities of the cosmos through meditation.