He goes on this doubt sensation or feeling of doubt is not a suspicion. On the contrary, it is established on the great conviction or faith that by using this method, you can apprehend your original true nature, your intrinsic freedom. This doubt is more like a sense of wonderment. A feeling of not knowing but if acutely wanting to know. In past English texts, they've talked about great doubt doubt, but I think this term that Guo Gu employs of wonderment is is much more helpful. It has a kind of openness about it, that saying doubt doesn't it feels kind of negative feeling of not knowing, but of acutely wanting to know. So, again, think of Buddhist practice as being transcending our desires, but here we go to the most fundamental desire of all the, the wanting to know who and what we are, then engaging it, employing it in the process, and not denying it, but, but bringing it into this this work. It is quite dynamic and alive, yet free from wandering thoughts and discursive thinking. The concentration developed through working with a gunman is unlike traditional concentration methods of single minus mindedness. This sense of wonderment or questioning mind is undivided, yet not stagnant, concentrated, yet engulfing, encompassing everything in all daily activities of life. It walks with us, it lies down with us, goes to sleep with us, it wakes up with us. During meditation, the sense of wonderment can get quite intense, reaching a point where words and language are completely dropped. In that state of non conceptual reality, the discriminating mind comes to a dead end and one remains open in wonderment. This is when the practitioner reaches a unified sense state of oneness with self referentiality Is that as weakest Chan masters call this the great death. Only when even this state of oneness is dropped, can the protection practitioner come back to life, this is called the great life to the Great Awakening. There are many ways to engage with the cases, it is often not necessary to reflect on the whole story of the going on. Each Conan has a critical turning point that has the potential to transform delusion into awakening, the critical point called the guado can be the focus of one's meditation, you can think of Eduardo as a condensed version of a Golan. So, if we take the example of the con Mu, the whole con is a monk once asked Master Joshu does even a dog have the Buddha Nature Joshua said mo or if he originally been in Chinese wool, which means Not or No. So, if we boil it all down, then it boils down to the word Mu. And so one one the instruction was given his to to take up this this knob, as the as the as the essence of the car, what is Mu