If I observe the undercurrent itself, I may be able to reach a state of thoughtlessness. I believe thoughtlessness is timelessness since time is change and we measure time by the movement of our thoughts. So no thought, no time. I was wondering if the undercurrent is actually a frequency attracting other thoughts. If I can change that frequency to love, then all thoughts would be tuned to that.
Some days there is this feeling of nothingness which feels really unpleasant. There is a strong aversion to this feeling and the mind tries to fill it up somehow, usually with negative thoughts and an undercurrent unpleasant feeling. I analyzed this feeling of emptiness and it seems that though there is no gross thought, there is a subtle undercurrent thought manifesting as a feeling. It does not have any content, but it is just a mild unpleasant restless feeling – the mind seems to strongly resist it. It is from this feeling all the other thoughts are generated.