This year's full moon of the mouse month (3rd of January) is tsasan tergel sar. It marks the start of yukhen-yukhen (yes yes, in khalkh), the nine nines. Nine periods of nine days each are used to keep track of the progress of winter.
Tsasan tergel sar, is the day to call for protection against the harsh winter. Rituals with offerings to the gal (fire) and övgöd (ancestors) are performed. The winter is a period of dormancy of earth and spiritual distance heaven, so focus is on spirits of the house and community.
In many cultures winter is thought of as a time of absence, decline and demise. It may be considered as a disruption of the normal functioning of the world. In many cultures winter is mythically explained as being the result of disastrous events or moral transgressions.
But in the Tengerist view winter is harsh but not wrong or malevolent. It's seen as conserving vitality, rather than eliminating it. It is essential to many lifecycles. Plant life retreats into roots and soil, where it is preserved by the earth itself and protected by the blanket of snow cover. Any herder knows that reindeer need winter to stay healthy. Reindeer grow weaker and are more prone to disease in warm climates. Herds have to migrate north, to the cold, when a period of warmer winters strikes.
Chegeen Chebdeg Khan, the lord of winter, being between belonging to the tsagaan tenger or to the khar tenger symbolises the effects of winter. Khar tenger often promote change, and may employ terrifying, ruthless and unmerciful means; while tsagaan tenger often maintain order, purity and rest. Winter maintains the cycle of life and balance on earth, but is coupled with privation and hardship.
The traditional dates in the progress of winter are as follows:
The full moon of the wolf (9th) month is the day that Bayan Khangai and other spirits of the forest are honoured. This period is the advent of winter, as around this time the first snow falls in Siberia.
Övliin tuil (winter's peak, the winter solstice) is an important day for ritual. On that day people call for a good winter and the speedy return of warmth.
Tsasan tergel sar (the snow moon) is the full moon closest to övliin tuil, it marks the start of yukhen-yukhen. On that day people call for protection against winter.
81 days after tsasan tergel sar, övliin tögsgön (winter's completion) is the day the yukhen-yukhen ends.
On the new moon of the first month of the new year is sagaalgan (white moon). It marks the advent of spring.
(Since these days are dependent on solar and lunar cycles their ordering may differ. Övliin tögsgön often occurs after sagaalgan for instance.)
Upcoming dates for the yukhen-yukhen in the Gregorian calendar:














