Dream About Seeing Dead Dad

I had a dream that I saw my dead dad in our old house, though I knew he was still dead this was still a vessel of him. I hugged him and he picked me up and he was walking about with me lifted on his hip. He was still cold, and was a bit sad. But looked as he normally would. My mum was though the window with her new parter and she tried to take a photo of me and my dad but her phone wasn’t working, she gave me the phone and once I fixed it and handed it back to her to take a photo of me and my dad he said he had to go and left.