I thought a bit further...

Frozen stuff could be set patterns like repeated behaviour. Maybe your relation to your dad is influencing the relationship with your own family. If your dad could do anything for you now in a dream-like environment it would be to remove "his influence" on your family life. That would bring out your own natural reponses more, and that is surely better.

Also it seems, and you noted yourself, that your relation to your dad is a "can of worms".

There is a certain neg association with worms/parasites. Did your dad seem the type? (driven)

Also, if I think about Core Image Removal, it seems that negs use our past traumas to take influence on us, so the process you were applying seems to be like a "guerilla approach" (strike and hide) to removing an attachment. Your dad can hardly come after you, and whom should the worms cry out to help for?

This all is highly speculative, but sometimes I cannot stop myself.

Oliver