In Hinduism and Buddhism, the Sanskrit term Bīja(बीज) (Jp. 種子 shuji) (Chinese 种子 zhǒng zǐ), literally seed, is used as a metaphor for the origin or cause of things and cognate with bindu. The metaphor is considerably extended in the Consciousness-only teachings of the Yogacara school of Buddhism. According to this theory, all experiences and actions produce bīja as impressions, stored in the alaya (storehouse) consciousness. The external world is produced when the seeds "perfume" this consciousness. This view of bīja has been equated to memes, with the theory itself positing an extreme form of memetics (i.e. reality and existence consist purely of memes).