Kevaladvaita Vedanta was propounded by Adi Shankaracharya who considered the sole reality of Brahman. He wrote commentary on Prasthanatrayi i.e. Brahmasutras, Upanishads and Bhagavadgita from the perspective of absolute monism. He propagated the philosophy of Nirguna Brahman i.e. Brahman without any form, qualities and names. This video explains the fundamentals of Absolute monism. This video is being uploaded on the occasion of birth anniversary of Bhagavatpada Adi Shankaracharya.
