My husband doesnt understand it, but I have always sewn (I made my wedding dress) so he knows it is part of "who" I am. I also use part of the bedroom as my sewing space and it tends to spread and he never says a word. He has learned not to ask how much I spent when I walk in the door with my bags of fabric LOL. It makes me happy so he is fine with that. He loves the quilts I make for him and anything I make for the house. So maybe he does understand more than I had thought lol.