While Hinduism sub-schools such as Advaita Vedanta emphasize the complete equivalence of "Brahman" and "Atman", they also expound on Brahman as "saguna Brahman"—the Brahman with attributes, and "nirguna Brahman"—the Brahman without attributes. The "nirguna Brahman" is the Brahman as it really is, however, the "saguna Brahman" is posited as a means to realizing "nirguna Brahman", but the Hinduism schools declare "saguna Brahman" to be ultimately illusory. The concept of the "saguna Brahman", such as in the form of avatars, is considered in these schools of Hinduism to be a useful symbolism, path and tool for those who are still on their spiritual journey, but the concept is finally cast aside by the fully enlightened.