Iyengar Yoga was founded by B.K.S. Iyengar , one of the most influential and respected figures in modern yoga. Born in 1918 in Bellur, India, into a modest family, Iyengar experienced a difficult beginning marked by serious childhood illnesses, including tuberculosis, malaria, and typhoid. These physical challenges were the driving force behind his quest for healing, which he found through yoga under the tutelage of his brother-in-law, T. Krishnamacharya , at the age of 15. Krishnamacharya, considered the "father of modern yoga," had a decisive influence on the development of Iyengar's practice, and he subsequently became a pioneer in the spread of yoga in the West.

BKS Iyengar developed his own approach to yoga by focusing on precise body alignment , rigorous technique , and the use of props to help practitioners enter postures regardless of their physical condition. The influence of anatomy and biomechanics is a central aspect of Iyengar Yoga , where each posture is broken down meticulously to ensure the body is perfectly aligned. Unlike other styles of yoga that focus on fluid movement or speed, Iyengar Yoga is distinguished by its extreme attention to detail and in-depth exploration of each posture. Iyengar firmly believed that correct alignment in asanas could heal the body, stabilize the mind, and pave the way for spiritual transformation .

Iyengar's approach is also deeply influenced by the teachings of Patanjali's Yoga Sutra , which he considered an essential source for understanding the essence of yoga. He placed particular emphasis on the concept of sthira-sukham asanam , the combination of stability (sthira) and comfort (sukha) in each posture. For Iyengar, a properly aligned posture should not only be a physical position, but also an expression of the balance between strength, flexibility, and inner tranquility.

The introduction of props —blocks, straps, blankets, wall ropes, and chairs—was a major innovation by Iyengar that made yoga accessible to everyone, regardless of age or physical limitations. These props help practitioners hold postures precisely while reducing the risk of injury. This methodical approach has also allowed many people with physical conditions or chronic injuries to benefit from yoga safely and appropriately.

In 1966, BKS Iyengar published his groundbreaking book, "Light on Yoga," which quickly became a standard textbook for yogis worldwide. This book, often referred to as the "yoga bible," contains detailed descriptions and illustrations of over 200 postures, as well as instructions on pranayama (breathing exercises) techniques and the therapeutic benefits of yoga. Thanks to this book, Iyengar Yoga quickly spread internationally, and yoga centers were opened in countries as diverse as the United States, England, Australia, and France.

The therapeutic dimension of Iyengar Yoga is another fundamental aspect of this method. BKS Iyengar believed that properly aligned postures could rehabilitate injuries, improve blood circulation, and even treat certain chronic diseases. He developed specific series for physical problems such as back pain, joint disorders, and muscle pain, making yoga accessible even to people recovering from injuries or with limited mobility.

On a spiritual level, Iyengar Yoga is not solely a physical practice, but a path of deep introspection and self-knowledge . By requiring intense concentration on every detail of the posture, this method encourages the practitioner to develop total mental presence , thus cultivating inner stability and peace of mind . Iyengar believed that the perfect union of body and mind through asana could lead to spiritual transformation and a deeper connection with the divine.

Today, Iyengar Yoga is practiced worldwide, with thousands of certified teachers and dedicated centers in many countries. BKS Iyengar's legacy lives on through his writings, teachings, and the global community of practitioners who perpetuate his rigorous method and commitment to the practice of yoga as an art and science of life.