When one realizes Paramanttha Objects, Piti (rapture) will arise. One is delighted of this knowledge.
In general, Piti is food but according this method, Piti is the obstacle of attaining the End of Suffering.
When Piti arises, one will attach to it. We should do the bodily movements vigorously and as much as we can to turn the mind away from Piti and back to the movements. Do it slowly and rhythmically. When self-awareness increases more and more, Piti will gradually fade away and the mind will return to the ordinary state.
Suffocation, giddiness or strain may arise. We should practice with ease, look far away and move gently. We should not stop practicing because of these obstacles but continue our practice earnestly. Do not sleep in daytime but rest at night.