Before the opening of the underground palace of Baoxiang Temple, there was no historical record of the hidden secrets in this stupa, and even the name of the stupa could not be found. The Buddha tooth relic was buried in extreme secrecy. The tower was badly damaged by modern wars. It was not until 1994 that people accidentally discovered the entrance to the underground palace at the bottom of the tower.

Zhou Shaoliang, former vice-president and secretary-general of the Buddhist Association of China, once commented on this excavation: "The excavation of hundreds of Buddhist cultural relics at one time is unprecedented at home and abroad, both in history and now. The Buddhist tooth relics unearthed in Baoxiang Temple are the supreme sacred objects in Buddhism and rare treasures among cultural relics. Five-color cultural relics are very rare. According to Buddhist scriptures, the Buddha received five-color relics after his death, and the teeth and relics hidden in stone boxes, gold coffins and silver envelopes were the highest specifications for burial. The relics unearthed in Baoxiang Temple adopt this burial ceremony and standard, and the gold coffins and silver coffins they choose are exquisitely made and exquisite in craftsmanship, which shows the dignity of their buried objects. The relics of Famen Temple were supported and treasured by the royal family in the Tang Dynasty, and their specifications were unparalleled by later generations. In addition to Famen Temple, it has not yet approached or exceeded the burial specifications of the Buddha's tooth relics in Baoxiang Temple, and Wenshang has become the second in Famen Temple. "