To come back to the theme of the Third Chapter, again, we have to be convinced at the bottom of our being that the objects are not placed externally in space and time. This is a mistaken view of the mind. If they are not really external to us, there cannot be any sensory contact with them, and, therefore, there is no question of a desire for them. The whole thing drops at one stroke. This is a little bit of psychic instruction.
Esoteric psychology holds that the mind has a certain location.
In the waking state it is supposed to be functioning through the brain, and its root is supposed to be the point between the two eyebrows. In the condition of dream, the mind is said to be moving through the nerve centre located in the throat, or the region of the neck, and in the condition of deep sleep the mind goes down into the heart, and that is the ultimate seat of the mind. Here, in the verses referred to in the Fifth Chapter, we are told that the mind has to be concentrated on the point between the two eyebrows. The gaze has to be fixed on the Ajna-chakra , as it is called, by which what is implied is that the mind has to concentrate itself on its own seat. Thereby it becomes easier to control the mind than when it is moving away from its centre.