Swami Satyananda Saraswati, the founder of Bihar School of Yoga, was a renowned spiritual leader and yoga master. He established the Bihar School of Yoga in 1963 with the aim of spreading the teachings of yoga to the world. Over the years, the school has evolved and grown in many ways, making it one of the most influential and respected yoga institutions in the world.

One of the key ways in which the Bihar School of Yoga has evolved is through its expansion and reach. Initially, the school was located in Munger, Bihar, and offered residential courses for students. However, as the demand for yoga grew, the school opened branches in different parts of India and abroad. Today, the school has centers in many countries, including the United States, Australia, and Europe, making it accessible to a wider audience.

Another significant evolution of the Bihar School of Yoga is the incorporation of various yoga styles and techniques. Swami Satyananda Saraswati believed in a holistic approach to yoga, and as a result, the school offers a diverse range of yoga practices, including Hatha, Raja, Karma, and Bhakti yoga. The school also offers specialized courses in areas such as prenatal and postnatal yoga, yoga therapy, and yoga for children. This expansion of practices has made the school a hub for learning and practicing different forms of yoga.

Additionally, the Bihar School of Yoga has also evolved in terms of its curriculum and teaching methods. The school has developed a comprehensive and systematic curriculum that covers all aspects of yoga, including philosophy, asanas, pranayama, meditation, and more. The teachings are based on the traditional scriptures and texts of yoga, but they are presented in a modern and practical way, making it relevant and applicable to the modern world. The school also uses modern technology and resources to enhance the learning experience, such as online courses, e-books, and audio-visual aids.

Moreover, the Bihar School of Yoga has also evolved in terms of its impact and influence on the global yoga community. The school has produced many renowned yoga teachers and practitioners who have spread the teachings of yoga to different parts of the world. It has also organized numerous international conferences and workshops, bringing together yoga enthusiasts and experts from different countries. The school has also established collaborations with other yoga institutions and organizations, further expanding its reach and influence.

In conclusion, the Bihar School of Yoga has evolved tremendously since its establishment, both in terms of its physical presence and its teachings. It has stayed true to its roots and traditional teachings while adapting to the changing needs and demands of the modern world. Swami Satyananda Saraswati's vision of spreading the knowledge and practice of yoga has been fulfilled through the growth and evolution of the Bihar School of Yoga, making it a beacon of light for all yoga enthusiasts.