Swami Sivananda, the founder of the Divine Life Society, was a spiritual leader and teacher who dedicated his life to spreading the message of peace, love, and unity. He was a renowned scholar, writer, and practitioner of yoga and Vedanta philosophy. His teachings were based on the principles of selfless service, devotion, and self-realization.

One of the main teachings of Swami Sivananda was the concept of selfless service or Karma Yoga. He believed that true happiness and fulfillment can be achieved by serving others without any expectation of reward or recognition. He emphasized the importance of performing one's duties with dedication and sincerity, and to see the divine in every being.

Swami Sivananda also taught the path of devotion or Bhakti Yoga. He believed that through devotion to a higher power, one can cultivate love, compassion, and surrender. He encouraged his followers to develop a personal relationship with God and to see the divine in all aspects of life.

Another important teaching of Swami Sivananda was the practice of yoga as a means to achieve physical, mental, and spiritual well-being. He popularized the practice of Hatha Yoga and emphasized its benefits for overall health and inner peace. He also stressed the importance of meditation and self-inquiry to attain self-realization.

Swami Sivananda's teachings also emphasized the importance of living a simple and disciplined life. He believed in the power of positive thinking and encouraged his followers to cultivate virtues such as truthfulness, non-violence, and compassion.

In addition to these teachings, Swami Sivananda also emphasized the importance of selfless love, forgiveness, and non-attachment. He believed that these qualities are essential for spiritual growth and inner peace.

Overall, the main teachings of Swami Sivananda revolved around the idea of selfless service, devotion, and self-realization. He believed that by following these principles, one can lead a fulfilling and meaningful life and ultimately achieve the ultimate goal of union with the divine. His teachings continue to inspire people all over the world, and his legacy lives on through the Divine Life Society and its teachings.