This mountain is said to change colour depending on the moods of the devtas or deities; red showing anger, yellow, happiness, etc.

At some places remains of an ancient wall encircling all the monastery buildings may be found.

It is probable that, like Tabo, it was designed as a choshor site, a place for learning and debate as opposed to a simple village monastery or a chapel for worship by the local people.

"The Lha-lun monastery, built by Rin-chen-bZang-po, was originally a Kah-dam-pa (Kadampa) establishment to which the Great Lotsaba belonged.

In the 17th century, this monastery was annexed to the Ge-lug-pa (Gelugpa) fold by the Mongold despite the Sa-kya-pa (Sakyapa) resistance and, a loss of a few more temples.