The centre of the temple is the innermost
chapel, which is said to date back to the original temple built by Songtsen Gampo; according to the legend, it held Buddha
statues of stone and a
Tara statue. Today, the chapel houses
clay figures which are said to contain fragments of the original statues. The most important treasure of Tradruk is a
thangka embroidered with thousands of
pearls which is said to have been made by
Princess Wencheng herself. It depicts Wencheng as White Tara. The thangka is kept in the central chapel on the upper floor. It is one of only three thangkas made by Wencheng. The two others are in the
reliquary stupa of the 5th Dalai Lama in the
Potala Palace in Lhasa and in
Xigazê. There is a famous "talking" statue of
Padmasambhava at the age of eight years in the same room in Tradruk. Tradruk used to have a famous bell on the verandah which is not in the monastery any more with an inscription containing the name of Trisong Detsen, who probably enlarged and embellished the original buildings. The inscription on the bell read: "This great bell was installed here to tell the increase of the life-time of the divine btsan-po Khri Lde-srong-brtsan. The donor Queen Byang-chub had it made to sound like the sound of the drum roll of the gods in the heavens and it was cast by the abbot, the Chinese monk Rin-cen as a religious offering from Tshal and to call all creatures to virtue." The main building is surrounded by several smaller
shrines. ==Rituals==