Chökhor Düchen  is one of the four great occassions (Losar, Saga Dawa, Choekhor Duchen and Lhabab Duchen) celebrated by all Tibetan Buddhists. During those times, it is believed that the effects of positive or negative actions are multiplied ten million times.  It falls in the Tibetan Lunar calendar in the 6^th month, 4^th day.  Choekhor means “Prayer Wheel” or “Dharma Wheel”, the common religious objects in Tibet, and Duchen means “great occasion” in Tibetan. Hand held wheels are hollow wooden or metal cylinders attached to a handle which are printed with mantras and when turned spread spiritual blessing. Mantras invoke the attention and blessings of the Buddhas, for example —Om Mani Padme Hum–the mantra of Chenrezig also known as Avalokiteshvara who is the Buddha of Compassion, invokes great love, compassion, and wisdom.  Tradition has it that Buddha was not convinced that teaching what he had discovered through his meditations could be communicated in a way that would be of any benefit to others. It took the intercession of the great gods, Brahma and Indra, to persuade him to do so for the benefit of all sentient beings. The Buddha then addressed the five people who had been his companions during the time spent with the forest yogins, and taught this first teaching–the Four Noble Truths.