Was it my dad?

I have an 11 month old who knows who pap pap is. when my dad ped away my mom has his ashes up on her bookshelf. One day we went to visit her and out of the blue my son points to the urn and says "Pap Pap". I got goosebumps. I asked, "Do you see pap pap?" and he did it again. I looked up there and there were no pictures on that bookshelf. I know my son is smart, but he doesnt know what an urn is. I think kids can see things we cant be cause they are still innocent. What are some of your thoughts?