In the beginning, the yogis can only know the physical object, but they don’t know the knowing.
[Yogi’s note: It’s easier to notice the body senses, the physical objects than to notice the mind.]
For example, if your 2 fingers are touching each other; do you know the touch sensation or the knowing? Knowing is also there, but not as obvious as the touch.
Actually, it is only because of knowing that we can say there is touching. Without knowing, we cannot say that there is touching. But touching is more obvious than knowing because knowing is an activity of the mind.
Later with practice, the yogi can see both the touching and the knowing. Knowing is the mind and being known is the object. The awareness and the object have 2 different natures. When you can notice the 2 different natures, then you can see the activity of the mind.
It is the same with hunger and wanting to eat; they are 2 different natures. Hunger is of the body, but the desire to eat is the mind.