Nagarjuna, a prominent Buddhist philosopher of the Madhyamaka school, is known for his teachings on the concept of sunyata, or emptiness. Sunyata is a fundamental concept in Buddhism, and Nagarjuna's teachings greatly influenced its understanding and application.

The relationship between Nagarjuna's teachings and the concept of sunyata can be best described as complementary. Nagarjuna's main focus was on the Middle Way, which is the path between eternalism and nihilism. He argued that all things are empty of inherent existence, and this emptiness is the ultimate reality. This aligns with the concept of sunyata, which also emphasizes the lack of inherent existence in all phenomena.

Nagarjuna's teachings on emptiness were based on his understanding of the concept of dependent origination. He argued that all phenomena arise dependently and are therefore empty of inherent existence. This understanding of emptiness is closely related to the concept of sunyata, which also emphasizes the interdependent nature of all things.

Furthermore, Nagarjuna's teachings on emptiness also highlight the concept of non-duality. He argued that emptiness does not negate the existence of phenomena but rather transcends the duality of existence and non-existence. This is in line with the concept of sunyata, which also emphasizes the non-duality of all things.

Nagarjuna's teachings also had a significant impact on the understanding of sunyata in the Madhyamaka school. He emphasized the importance of using reason and logic to understand emptiness, rather than blind faith or dogma. This approach is reflected in the Madhyamaka school's understanding of sunyata as a concept that can be understood through logical reasoning and analysis.

Moreover, Nagarjuna's teachings on emptiness also had a practical aspect. He believed that understanding emptiness can lead to the cessation of suffering and the attainment of enlightenment. This is in line with the Buddhist belief that realizing the emptiness of all things can lead to the end of suffering.

In conclusion, Nagarjuna's teachings and the concept of sunyata are closely intertwined. His emphasis on the Middle Way, dependent origination, non-duality, and the practical application of emptiness greatly influenced the understanding and interpretation of sunyata in Buddhism. His teachings continue to be a significant influence in the study and practice of emptiness in Buddhism.