Lha Bab Düchen:

Buddha Shakyamuni descent from Tushita Heaven, at Sankhasa, near Patna. To repay his mother's kindness and to liberate her, Buddha spent 3 months teaching the Dharma in the Gods realms.

On this day, the effects of positive and negative actions are multiplied by 10 million times

Tibetan Calendar: 9 / 22