I clean my electric coffee grinder every time I grind beans. First I unplug it then I wipe it down. Then I wipe it dry with another cloth. I always unplug it. Even though there is little chance that I will trigger the grinder (it is sunk into the body) for safety reasons I will always unplug it lest I grind my fingers.
But if the reality does not conform to the way I see the world works then why I unplug the grinder. Without seeing the power I still know it is “there”. But how can I know it is there without being able to see it?
The truth is I do not know it is there. Only the fact that for the grinder to work it must be plugged into have the power for it to work. Unplug it and it will not work.
To put it another way it is only in horror movies that grinders “come to life”. In reality there is always an explanation including an explanation for movie magic (it is plugged in but you cannot see it).
The idealist project of that nothing exists outside of cognition of it serves no purpose for how we interact with reality other than the fact we use this knowledge to make interesting films.