I keep having dreams about my dad that passed away 6 years ago, that he is alive and well, what does this mean?

Memories never die. The belief is that when you see a dead person in dream ,his soul is assuring his love ,protection and blessings to you.

You're not letting go subconsciously. And that's ok. It's normal.

Seek a counselor if you already havent.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.