Sri Yukteswar Giri was a highly respected spiritual leader and guru who played a significant role in the life and teachings of Paramahansa Yogananda. He was born on May 10, 1855, in Serampore, West Bengal, India, and was given the name Priyanath Karar. From a young age, he showed a deep interest in spirituality and spent most of his time studying the ancient Hindu scriptures.

After completing his education, Sri Yukteswar began his career as a teacher, but he soon realized that his true calling was to guide others on their spiritual journey. He left his job and embarked on a pilgrimage to various holy places in India, seeking a guru who could help him deepen his spiritual understanding. After several years of intense search and practice, he finally met his guru, Lahiri Mahasaya, who initiated him into the ancient Kriya Yoga tradition.

Under the guidance of Lahiri Mahasaya, Sri Yukteswar's spiritual knowledge and understanding flourished. He spent the next several years studying and practicing the teachings of Kriya Yoga, which emphasized the importance of inner spiritual awakening and union with the divine. He also received training in the ancient science of astrology and became a renowned astrologer, using his knowledge to guide and help others on their spiritual path.

In 1894, Sri Yukteswar was given the title of "Swami" by his guru, which means "master of the self." This marked the beginning of his journey as a guru, and he started teaching and guiding others on the path of Kriya Yoga. He established a hermitage called "Karar Ashram" in Puri, India, where he welcomed students and seekers from all over the world.

Sri Yukteswar's teachings were deeply rooted in the ancient wisdom of the Vedas and the Bhagavad Gita, and he emphasized the importance of living a balanced and harmonious life. He also stressed the need for self-discipline, meditation, and devotion to God as essential tools for spiritual growth. His teachings were simple yet profound, and he had a unique ability to explain complex spiritual concepts in a clear and practical manner.

Through his teachings and guidance, Sri Yukteswar became a highly revered and beloved guru, and his disciples included many prominent spiritual leaders and seekers, including Paramahansa Yogananda. He also wrote several books, including "The Holy Science" and "The Bhagavad Gita: The Divine Song," which continue to inspire and guide people on their spiritual journey.

In conclusion, Sri Yukteswar became a guru through his own dedicated spiritual practice and the blessings of his guru, Lahiri Mahasaya. His deep understanding of the ancient teachings and his ability to impart them in a practical and accessible manner made him a highly respected and influential spiritual leader. His teachings continue to inspire and guide people towards inner peace, harmony, and spiritual awakening.