There is no indication of how the author — evidently Li Hua or some other disciple of the famous Indian esoteric Buddhist master — felt about this mouse or its whiteness, nothing to elucidate what kind of wheel it was spinning, no explanation how it merited religious veneration in the form of donations. Donations of what? Things written in stone tend to be glib, chiseling is hard work after all. For myself at this very moment, so is using the computer keyboard, so I'll make this brief.
(*For Tibeto-logicians that is just a nice metaphor that means teaching Dharma... or could it mean ruling?)
(*Obviously a name that comes to us by way of Chinese sources, not that there was anything Chinese about him).