cording to Sri Sankara, there is one Absolute Brahman who is Sat-chit-ananda, who is of an absolutely homogeneous nature. The appearance of this world is due to Maya – the illusory power of Brahman which is neither Sat nor Asat. This world is unreal. This world is a Vivarta or apparent modification through Maya. Brahman appears as this universe through Maya. Brahman is the only reality. The individual soul has limited himself through Avidya and identification with the body and other vehicles. Through his selfish actions he enjoys the fruits of his actions. He becomes the actor and enjoyer. He regards himself as atomic and as an agent on account of Avidya or the limiting Antahkarana. The individual soul becomes identical with Brahman when his Avidya is destroyed. In reality Jiva is all-pervading and identical with Brahman. Isvara or Saguna Brahman is a product of Maya. Worship of Isvara leads to Krama Mukti. The pious devotees (the knowers of Saguna Brahman) go to Brahmaloka and attain final release through highest knowledge. They do not return to this world. They attain the Nirguna Brahman at the end of the cycle. Knowledge of Nirguna Brahman is the only means of liberation. The knowers of Nirguna Brahman attain immediate final release or Sadyomukti. They need not go by the path of gods or the path of Devayana. They merge themselves in Para Brahman. They do not go to any Loka or world. Sri Sankara's Brahman is Nirvisesha Brahman (Impersonal Absolute) without attributes.
: [Topic-3/First chapter of Brahma sutra]. : 1.1.3(3) means the scripter is the source of right knowledge. The scriptures illumine all things like a search light. Through scripture only we get a comprehensive understanding of the nature of Brahman. Brahman is formless, colourless, attribute less. Hence it can not be grasped by the senses alone.