Oh no... the baby and the bath water?!?! I must have stepped in it again. I assure you that what I am saying belongs here, and I am sorry if I have disturbed you.
The topic of this thread is a Zen expression, "don't know mind", that is a conceptual description of the mind clear, still, and ready for anything, arrived at by allow the mind to come to a stop. It isn't a practice, concept, or religious belief (a baby in the bath water) it is precisely the lack of ANY effort or contrivance of the mind. It is mind "as it is", arrived at by allowing to come to a stop of its own accord. It is simply being enlightened mind in this moment. It is dropping process, technique and maps completely and finding enlightenment in this moment, if only temporarily. This is the essence of Zen.
This is the concept of the "Gateless Gate", the title of a famous collection of koans, and subject of many spiritual quotes. The lesson of them is that true understanding or enlightenment is not a destination to be reached by passing through a physical or mental barrier, but an experience that transcends thought, "self", religion, practices, and fabrication. The title is a paradox: a gate that is no gate at all. A gate that you desperately wish to pass through, but can realize that you have always been inside of. It is a metaphor that appears again and again in non-dual traditions.