When side bending the spine, both in isolation and in the context of yoga poses, you can focus on the short side of the side bend to make the side bend easier to feel.
Achieving Correction of Postural Asymmetry With Lateral Trunk
Neutral Spine and The Core — Ellie Herman Pilates
The Pilates Approach to Back Pain - Dimensions of Dental Hygiene
Yoga Pose: Side bending pose
Spinal Movements (Part 7) - Yoga Synergy
Mellow hips and lower back
Spinal Lateral Flexion Assessment
Movement Impairment Syndromes of the Lumbar Spine
Lying Spinal Lateral Flexion (Side Bends)
RE-UPLOAD: Rib Movement Coupled with Lateral Flexion & Rotation
Level 3 (71) Exercise and Fitness Knowledge: The spine and
Lateral Flexion: A Movement From Our Evolutionary Past – Health