Hi silverdaler,
I felt exactly the same at my mums funeral a couple of years ago, my Sister was really upset,but I was really calm and relieved in a way because mum had gone to a better place,she was in pain before she went and she just drifted away,so I was happy for her,if that makes sense, but your Dad will allways be with you,you will laugh,you will cry, but most of all you will remember him for being your lovely Dad,hope things go smoothly for you, take care, Ray