The ever-changing shadows of the Xiangtangshan Grottoes

The Xiangtangshan Grottoes were carved during the Northern Qi dynasty. The grottoes are not large, and they have suffered significant damage and theft, but this does not detract from their uniqueness and beauty. From the main entrance, one can take a short ride, but the rest of the way consists of steps, which can be challenging for those with poor physical fitness. Above the grottoes, there are openings carved out, allowing light to shine in from above, filling the grottoes with ever-changing beauty at every moment. On the way down, one can also visit the Dule Temple, although now only the ruins remain. Stone steles and columns are scattered on the ground, yet to be restored. Seeing a guide using a laser pointer on the artifacts, isn't it said that laser pointers can damage artifacts?