Published July 5, 2026
Yoga Journal’s archives series provides a curated window into our history, resurfacing foundational insights from our library dating back to 1975. This deep dive into Vasisthasana (Side Plank Pose) originally appeared in the May-June 1996 issue of Yoga Journal, offering a timeless perspective on the intersection of physical mechanics and yogic consciousness.
The Anatomy of Intention: Defining the “Yoga Heart”
In the modern practice of Vasisthasana (Side Plank Pose), practitioners often focus on the mechanics of the shoulder girdle, the strength of the oblique muscles, and the stability of the feet. However, to truly embody this posture, we must look inward—specifically, to the heart.
When we speak of the "heart" in the context of this asana, we are not merely referring to the physical organ, which rests slightly to the left of the sternum. Instead, we refer to the "yoga heart"—a conceptual and energetic center that shifts toward the center of the chest and deeper toward the back ribs. Yogis have long identified this region as the Anahata chakra, or the “wheel of the unstruck sound.”
The Anahata is said to be the seat of a sound produced without physical impact—a vibration that only the focused mind can perceive. It is the subtle paradigm of the body’s tireless pump, often interpreted as the "pulse of life" or the sacred mantra Om. By anchoring our Vasisthasana in this energetic space, the posture ceases to be a mere test of muscular endurance and becomes an exercise in internal radiance.
Historical Context and Symbolism
Vasisthasana is dedicated to the sage Vasistha, a figure whose name translates to "owner of wealth." According to Vedic lore, Vasistha was the master of Nandini, a celestial cow capable of granting any desire—be it food, jewels, or spiritual insight. The myth serves as a metaphor for the practitioner: when the heart is centered and the energy is aligned, the "wealth" of the pose—stability, grace, and concentration—becomes accessible.
The pose itself, a "T" shape tipped onto its side, requires a sophisticated integration of the extremities. The vertical trunk is formed by the legs, torso, and head, while the horizontal crossbar is represented by the extended arms. For many, the initial encounter with this pose is humbling; the arms tremble, the breath becomes labored, and the student often concludes, "I lack the necessary strength."
However, as Bonnie Bainbridge Cohen, founder of Body-Mind Centering, suggests, the "downhearted" student often misidentifies the source of their struggle. Success in Vasisthasana is not solely a function of muscular hypertrophy; it is a matter of organ consciousness—the ability to project intentionality from the core of the heart through the limbs.
Preparation: Bridging Heart and Arm
To move toward the completed posture, one must first bridge the gap between the internal center and the external reach.
Mapping the Sternum
Begin by lying on your back, knees bent. Place your fingertips on your sternum. The word "sternum" derives from a Latin verb meaning "to spread out," and this is your first task: visualize the bone fanning out from its vertical midline toward the clavicles. Simultaneously, expand your scapulas (shoulder blades) away from the spine, using the floor as a tactile guide.
Breathe into this space for several minutes. With each inhalation, visualize the heart radiating energy; with each exhalation, imagine the energy reabsorbing into the core. This is the "heart-pushed" arm technique. Unlike the "string-pulled" approach—where you imagine an external force tugging at your wrist—the heart-pushed method relies on internal pressure. By pulsing energy from the center of the chest through the arms like beams of light, you build a sustainable foundation that bypasses the fragility of muscle-only engagement.
Chronology of Practice: A Progressive Methodology
The journey to a stable Vasisthasana is best undertaken in phases, moving from wall-supported exercises to free-standing balance.
Exercise 1: The Wall-Supported Pivot
Stand with your back to a wall, roughly six inches away. Lean your torso and arms against the surface, palms open. By burrowing the scapulas into the back ribs, you create a stable shelf for the heart. As you lift your heart and straighten your knees, resist the urge to compress the scapulas toward the spine. Instead, drag them downward.
Once this connection is established, turn your right side to the wall. Keep the inner edges of the feet together and engage the inner groins. Reach the right arm parallel to the floor, spreading the palm against the wall. By pivoting on the ankles while keeping the arm fixed, you learn to maintain structural integrity under pressure. This pulse—straightening the elbow by pushing from the heart—is the essential rhythm of the pose.
Exercise 2: Chair-Assisted Alignment
Transitioning to a chair-assisted version allows the student to refine the pelvic tilt. Place a chair against a wall and move into a modified Downward-Facing Dog, with your palms on the seat.
- The Rotation: Step the left foot forward, spin it 90 degrees, and follow with the right foot, placing it on its outer edge in line with the right hand.
- The Lineage: Ensure a straight line from the nose through the sternum and navel, down to the inner leg.
- The Correction: If the pelvis sags, draw the pubic bone toward the navel. If the pelvis "sags back," use your hand against the sacrum to nudge the hips forward, creating a direct line of energy from the crown of the head to the tailbone.
Supporting Data: Structural and Energetic Implications
The physical challenge of Vasisthasana often triggers the "fight or flight" response, leading to gritted teeth and shallow breathing. However, clinical observation in yoga practice suggests that when the heart is actively engaged—what we call "having a song in your heart"—the nervous system regulates more effectively.
By holding for 10 to 15 seconds and incrementally increasing the duration, students can eventually sustain the pose for a minute or longer without signs of physical distress. This is achieved by balancing the tension of the supporting arm with the lightness of the top arm. When you extend the top arm toward the ceiling, imagine you are "hoisting" yourself off the supporting hand. This creates an oscillating energy that prevents the collapse of the shoulder joint and the compression of the neck.
Official Perspectives on Corrective Alignment
When performing the posture away from the wall, students often struggle with the "frontal plane"—the tendency to angle the top arm behind the body, which can collapse the upper back. To avoid this, lengthen the top arm directly out of the shoulder joint.
Looking at photographic comparisons of "crooked" versus "completed" Vasisthasana, the difference lies in the diagonal lines. A well-executed pose displays a pair of crossed diagonals: one from the forehead to the heels, and another through the outstretched arms. If these lines are fractured, the energy of the Anahata is blocked.
Implications for Long-term Practice
The ultimate goal of Vasisthasana is not the attainment of the "perfect" shape, but the cultivation of the ability to remain centered amidst the challenge. As you move from wall-supported practice to the free-standing version, remember the transition: sweep the top arm gracefully into position rather than forcing it.
This, ultimately, is the lesson of the sage Vasistha. Just as the cow Nandini provided whatever was requested, the posture provides whatever the practitioner is capable of receiving—provided they approach it with a clear heart, a strong foundation, and the realization that the strongest muscles in the body are useless without the consciousness of the heart driving them forward.
By practicing these sequences, you are not merely performing a yoga pose; you are training your internal awareness to remain steady, bright, and "unstruck" by the external pressures of gravity and fatigue.
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