I would have thought you would have set your column base stone in a bed of gravel or concrete. Curious, is the person with the crossed arms at 7:17 related to you?
No foundation stone was placed on the gravel or concrete floor. The hard soil was dug up and placed according to the shape of the foundation stone. You have to be patient and repeat this process several times to get the foundation stone right into the hard soil. Salam, with his arms folded, is a neighbor. I'm here to help you with your work.
In Korea, most wooden buildings do not have problems with termites. There is no damage at all, and sometimes there is a problem with termites. Isn't there a drug that can control hing ants?