When God in human form came to this earth as Shankara, all the children of God were found to be atheists (Buddhists and Purvamimamsakas), who denied God. They accept God only if they are already God. Even if a little practical effort is required to become God, they did not want to become God. Of course, they were prepared for any lot of mental effort like thinking etc. Shankara started the path accepting their desire completely and proposed the above said Advaita in which the soul can become God by maintaining the happiness continuously. Slowly, He wanted to bring them to the real path by which they can become really God. When a soul does not aspire to become God and wants to remain as practical servant of God only, it will be selected to the Golden chance of becoming human incarnation in which it really becomes God like a wire is treated as current for all practical purposes when current enters it.
