This is the view inside of the ceiling with the new wire pulled in through the hole in the laminated beam.

The patched ceiling hole. When “The Grabowski Method” is used to cut holes, they can be patched easily using only joint compound and No Tape.

The fish tapes have been pushed in and are ready for the wire to be attached and pulled in.
Close shot of the inside of the two gang plastic old work electrical box for the two dimmers