Naropa was a highly revered Indian Buddhist master who lived in the 11th century. He is known for his profound teachings on Mahamudra and Six Yogas of Naropa, which have become fundamental practices in Tibetan Buddhism. His teachings emphasize the importance of inner transformation and direct experience of reality.

The main teaching of Naropa is the path of Mahamudra, which means "great seal" or "great symbol". This path is based on the understanding that our true nature is already pure and enlightened, but it is obscured by our thoughts, emotions, and perceptions. The goal of Mahamudra is to realize this pure nature and attain liberation from suffering.

Naropa's teachings on Mahamudra emphasize the importance of meditation and direct experience. He taught that ultimate reality cannot be grasped through intellectual understanding or concepts, but can only be experienced through direct realization. This direct experience is possible through the practice of meditation, which allows the mind to become still and clear, and to see reality as it is.

In addition to Mahamudra, Naropa also taught the Six Yogas of Naropa, which are advanced tantric practices that aim to purify the mind and body and awaken the subtle energy channels within the body. These practices include inner heat, illusory body, clear light, consciousness transference, dream yoga, and bardo yoga. Through these practices, one can attain the state of enlightenment in this lifetime.

Naropa's teachings also emphasize the importance of a qualified teacher and the need for a student to have a strong commitment and devotion to their spiritual practice. He believed that a teacher-student relationship is essential for one to progress on the spiritual path and attain enlightenment.

Moreover, Naropa's teachings also highlight the importance of compassion and the cultivation of a loving and kind heart. He taught that true enlightenment is not just about personal liberation, but also about helping others to attain liberation from suffering.

In conclusion, the main teaching of Naropa is the path of Mahamudra, which emphasizes the direct experience of reality through meditation. His teachings also include the Six Yogas of Naropa, the importance of a teacher-student relationship, and the cultivation of compassion. Naropa's teachings continue to be a source of inspiration and guidance for many Buddhist practitioners, and his legacy lives on through the numerous lineages and traditions that follow his teachings.