Although mula bandha is more of an energetic lock than a physical thing, anatomically speaking your adductors and inner leg muscles help create pelvic stability, giving way to the beauty of your root lock. Use a block to create space and strength needed from your pelvic floor to create lightness for inversions like adho mukha vrksasana and pincha mayurasana. Bend back in camel with a block, before cooling down with double pigeon and savasana. Props Needed: A block. Props Suggested: Wall space.