Come, O Brethren, practise body-contemplation on the body, ardent and clearly comprehending, single minded, with a serene heart and a collected and concentrated mind, for knowing the body as it truly is. Practice feeling-contemplation on feelings...for knowing the feelings as they truly are; practise mind contemplation on the mind,...for knowing the mind as it truly is; practise mind-object contemplation on mind-objects, ardent and clearly comprehending, single- minded, with a serene heart and collected and concentrated mind, for knowing mind objects as they truly are.