First Step on the Mat

My boots felt the soft red cloth beneath me, and suddenly my knees bent on their own! I took a quick step forward to test my balance. Right in front of me lay a giant black bar covered in rubbery bumps. Without missing a beat, I reached down and tapped the little red button near the top edge. It pressed down with a quiet, satisfying click, and I held my stance firmly, ready for whatever happens next!