In using thought in this way we are not demanding a fixed or certain answer. We must remain open to any possibility. If something arises, fine. If nothing arises, fine. You are consulting the oracle of your own heart because that is what knows. In our hearts there is a well of infinite wealth and wisdom. We are using that turning to that. When the papanca gets running we can let it go and then come back to this place of investigation.
When we handle things with this ease we are changing the way we usually relate. The mind wants to know everything. Even if it doesn't understand, it will have some belief. It will form an opinion or view and hang on to that just to fill up the space of not knowing. It wants to be on top of things. But this whole method of investigation and inquiry depends upon not knowing. It depends upon us being open and ready to not know. It depends upon us allowing mystery and letting the knowing arise out of that. It depends on our not being threatened.
From the ego's point of view, the unknown is frightening. It is threatening and it responds to that threat by clinging to a belief as a way of dispelling it. But from the point of view of the heart, the unconditioned mind, the unknown is mysterious . . . but it is beautiful. You don't have to fill up the unknown with a belief or a concept or idea. You can leave it as mysterious because 99% of it will be mysterious anyway. There is no way that we can understand it all. So the heart's response to that mystery is faith - a trust in the fundamental orderliness of the universe.