'Where does understanding take place?' Listener question

The other part of the question is: is the shift happening in our programmed mind or is it something deeper? Some people describe a shift which seems like an experience of the formless. What is really shifting? I love that you show the logic in this because that is very helpful for me. At the same time I wonder if the shift is also of a formless happening which can be difficult to put into words. Sometimes it has been powerful for me to have a deeper understanding of the formless, and then it seems like the form is dissolving. If we concentrate on the form and the thinking it seems like we sometimes can be more trapped in it and there is more focus on the activity of the mind. What are your thoughts about this?