Have you looked at the photos I uploaded originally of the ceiling junction box
? Those show what I have. Of the black wires, two of them are wrapped together, 1 seems not to be. But as I say, all 3 black wires were twisted together already with a yellow twist-on connector when the old fixture was still installed and working since the house was built 33 years ago.You mentioned a wall switch box but I haven't opened it. Is that really necessary? I think you have presumed that I have multiple 3-way switches controlling the ceiling fixture but there is only one switch which controls this fixture. Perhaps the wiring
was intended originally to permit this, but it is not a necessary function since there is only a single switch controlling the light and I have no need to change that.
I don't mean to sound uncooperative, I just want to make sure you understand my situation. It may be that my situation is so self-evident that it hasn't occurred that I'd ever need any help with it! Maybe so but I got spooked by online warnings and decided not to attempt trial and error connections.
If it's of any help, I believe that the power for this ceiling light enters through the light, fixture, then goes down to the switch rather than the other way around. I make this assumption because the circuit breaker
switch that turns off this kitchen ceiling light that I'm installing also shuts off the ceiling lights in both an adjacent laundry room as well as one bedroom that is on the opposite side of the house. Not the other bedrooms though and not the hallway.