Traditionally, there are said to be four ways of obtaining pratyaksha: indriya pratyaksha (sense perception), manas pratyaksha (mental perception), svadana pratyaksha (self-consciousness) and yoga pratyaksha (super-normal intuition). Yoga pratyaksha is the most advanced form of perception and requires development of the self through the practice of The Eight Limbs of Yoga.
Pratyaksha is the first of the pramanas and is broadly divided into two types: direct perception, or anubhava, and remembered perception, or smriti. It can alternatively be divided into indiscriminate perception, or nirvikalpa, where perception of the object is made without recognizing distinguishing features; and discriminate perception, or savikalpa, where distinguishing features are observed. The indiscriminate perception (nirvikalpa) type of pratyaksha is crucial in Advaita Vedanta because it means that the Ultimate Reality, or Brahman, can be perceived without features when liberation into truth occurs.