Ardha Matsyendrasana (Sanskrit: अर्धमत्स्येन्द्रासन; IAST: Ardha Matsyendrāsana), Half Lord of the Fishes Pose, Half Spinal Twist Pose or Vakrasana is an asana. The asana usually appears as a seated spinal twist with many variations, and is one of the twelve basic asanas in many systems of Hatha Yoga. The asana is named