I have noticed that there have been a number of posts on this forum that reference Luang Poo Thate. As a long time disciple of Luang Poo, I feel it is my duty to correct some of the misconceptions referenced here. By doing so, I hope that his teaching will be fairly represented.
First, I would like to say that there is no Thai version of the Flavour of Dhamma. This work is a compilation of works by Luang Poo Thate only available in English. The individual works are available in Thai.
Second, Luang Poo did not equate Jhana and the Bhavanga. Instead, he refers the mind entering the Bhavanga when it reaches Jhana. So, just to be clear, the Bhavanga exists even when the mind is not in Jhana. They are not one and the same but Jhana does relate to the Bhavanga.
Luang Poo also differentiates Jhana from Samadhi. Jhana being the attainment of the Bhavanga by gazing/focusing on an object. Samadhi being the attainment of the Bhavanga by investigating an object, particularly in the light of impermanence, suffering and non-self. The flavour of these two Bhavanga experiences being slightly different.
Third, Luang Poo did not teach that the “original Citta” is Jhana. He would say that Jhana is still an expression of the original Citta and therefore mundane, unless Jhana is being used by a Ariya. To be clear, he did say that Jhana is “one-pointedness”, as is Appana Samadhi, but it is still an impure state.
Fourth, Luang Poo was not an Eternalist. The whole concept of the original or true Citta is a singularity between the opposites. In this teaching there is no notion of any part of the human construct being eternal. The true Citta is unconditioned. It belongs to no-one.
Luang Ta Maha Boowa does describe this as “Knowingness” but this is NOT vinyana. Vinyana again being an expression of the Knowingness. This description is entirely consistent with that of Luang Poo Thate. From what I have read of Acharn Char, his description is also entirely consistent with both Luang Poo Thate and Luang Ta Maha Boowa.
I hope that this clarifies Luang Poo Thate’s teachings on these matters, for those who are interested.