Nirvana is a central concept in Buddhism, representing the ultimate state of liberation and freedom from suffering, desire, and the cycle of rebirth. It is often described as a transcendent state where an individual experiences profound peace, enlightenment, and unity with the universe. In the context of Vedic India to the fall of the Maurya Empire, nirvana reflects the evolving religious and philosophical ideas that influenced early Indian thought, particularly through Buddhism's emphasis on overcoming the material world and achieving spiritual liberation.