The theory of Sphota originated with Bhartrhari and refers to the underlying meaning or essence of a linguistic utterance. According to Bhartrhari, language can be understood on two levels - the sounds that are uttered and the meaning that is conveyed. He proposes three aspects to language: 1) Vakrta-dhavni which is the sounds that are produced, 2) Prakrta-dhavni which is the abstract phonological structure or pattern of sounds, and 3) Sphota which is the underlying meaning or essence that is grasped by both the speaker and listener. The Sphota theory aims to explain how meaning is communicated through the medium of sound.