Hip roll still puzzles me

Hi Sifu,

One slight concern. I'm going to review this again this week and see if I pick up something I missed before or if it just clicks this time around. But, I think I'm still not quite getting the idea and the feel of the hip roll from the early lessons of Stage 1. Don't know if it's a lack of beginner's mind or why, but I'll keep reviewing and hope it clicks.