I went thru exactly the same, same scenario, my dad passed I'm the matter of 3 weeks after getting cancer and to this day I can never really let go. I didn't grieve as everyone else around me fell apart. It was like a bad dream when it all happened.
But now everyday I do a little prayer for him as you should. He will be much happier knowing your getting stronger than watching you hurt and cry, you know this would break him too. Let go of him, but never forget him and make him proud of you.
Pray for him daily and I promise that the pain will never go but you will get stronger.
First off, I am really sorry for your loss, the death of a loved one is always very tragic, the dreams are just that, dreams. Remember that even if you can't feel him or see him, he will always be watching over you. One way to cope would be to write a letter, set it in the water and watch it float away (all the things you wanted to say to dad) another way, which is also very helpful is create a scrap book of good memories the two of you both had together, focus on the good that you had together not how he died.
Try going to a place you used to visit together, it may help you feel a little peace. I hope some of this helps you.
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.