In Nyaya philosophy, Pramana is the central topic, as it is the valid means of acquiring Prama (true knowledge).
It is important because Nyaya believes that liberation comes from the right knowledge of reality.
Without Pramana, one cannot distinguish between valid knowledge (truth) and illusion or error.
Nyaya establishes four valid Pramanas: Pratyaksha (Perception), Anumana (Inference), Upamana (Comparison), and Shabda (Testimony).
These serve as the logical tools to verify reality and defeat skepticism.