Fact or opinion?In that case, the shruti "Mind and word return from it" is to be shelved.
In that case, the whole idea of Ishwara is untenable from tattvavAd perspective. The whole of the knowledge of Turiya non dual atman will fail.
Actually there is more to it. Direct experience of no two individuals will match. There is a pithy statement in Yoga Vasista that in my opinion summarises this. "What is true in consciousness is true since the Consciousness is true."
All schools agree on highest authority of Shruti and in fact schools other than advaita point out presence of Bheda shruti to refute Shankara.
The advaita position will be reduced to absurdity if sensual experiences are used to reject shabda pramana.
Science is my profession. I do my work as a necessity -- as a result of prArabdha. But it is shruti that reminds me again and again "The turiya atman must be known". Now, there is no way for the sensual apparatus or for science to experience Turiya directly.
However, we must all note that the purAna-s are not shabda pramana. They are smriti and not shabda.
Puranas are inline with Vedam and hence supreme authority.. You are getting confused