What are the details of the question word "gone"

The inscription "Disappear. . . . . 。” Details of Chongqing Dazu Baodingshan Stone Carving The stone wall of Jue Yuan Cave is engraved with:

If you have nothing to do, what is your heart!

There is no end to the heart, and the round photo shines selflessly through the ages.

People and cows are gone, and the moonlight is cold and empty.

If you ask what the mid-range means, wild flowers and herbs come from bushes.

This poem is one of the ode poems of "Cattle Pasturing in Baodingshan Giant Buddha Bay" written by Yang Jie (Er Gong), a giant Buddha in Yunmen in Song Dynasty.