I have been practicing (Goenkan) Vipassana for about 5 months. I have found that when I am able to communicate with my subconscious the effects are most pronounced, as when the pain of sitting finally went away during my initial adhittana (stationary) sittings, and a lot of other little pains and stiffness also lifted. My subconscious was educated by the sensation of pain ameliorating, not by my conscious mind telling it "stop feeling pain".
I would like to do the same with anicca. (The concept of) anicca still originates in my conscious mind, whereas pain/pleasure originates in my subconscious mind. I would like to bridge the gap vis a vis anicca, and make it as subconscious a process as possible. The closest I have gotten is this: as I feel sensations, I feel a ball/ridge of energy (arising) at the line of my awareness during a body scan, followed by a sensation of (passing) as the energy fades, rather like a comet in the sky. I still have to consciously remind myself sometimes that this is arising/passing (anicca), but it is better than using "anicca" as a continual conscious-level mantra, since the former at least involves body sensations.
Just wondering how others handle this, as the literature has not really answered it to my satisfaction.