The Advaita of Sankara says that “only the God exists and this world is just an illusion – or Mythya, - Brahma Satya, Jagat mythya”. 

And many modern Swamis like the one I was referring to in the previous episode, keep repeating this view. This in spite of the fact that many later Indian philosophers, who succeeded Sankara, strongly refuted this concept of mythya as put forth by Sankara. They did not agree that this world is an illusion.