Meditation is described as "sensitivity, intelligence, and adjustment". Parallels are done with "Sati, Panna, and Viriya" - a trilogy principle seen in MN:117, Mahācattārīsaka Sutta
Contact with the world causes citta to lose its sense of ground, space and rhythm. Use of body is recommended as a meditation theme. We practice to carefully meet contact impression, training intention and attention to be for one’s welfare.