吉祥天母
The monastery was originally built in a triangular form to reflect the symbolism of its position at the confluence of three rivers and surrounded by three mountains and also represents the conjunction of the three elements of water, earth and fire, as well as the female principle of Palden Lhamo in the form of an inverted triangle. The ruins, with their massive walls include two monastic colleges or "dratsangs" and two large temples, the Lukhang and Tsuklakhang.