In the end, Di Tou decided to ignore the hole for now. Maybe once he had hit the peak of Foundation realm, he could try using his Spiritual Sense to pry into the hole again. Of course, he'd be much more careful to not overextend himself when he tried again.
For now, he'd focus on cleaning off the circular display stand. Looking at it, Di Tou figured it'd take a good hour or two, then if he did another thing or two after that, it'd be around evening, and hopefully he'd be feeling much better by then.
Still using [A Gentle Touch], Di Tou grabbed his rags and started working on the stand, first cleaning around the edges where nothing was contained.
Soon enough, he got the surface satisfactory clean, and was astounded to see that the stand wasn't actually a dark wood… It was a light one.
"F*ck. Has he ever cleaned this thing?"