The Fourth Tetrad (Contemplation of Mind-objects) 13. “Contemplating impermanence I shall breathe in (I shall breathe out),” thus he trains himself. 14. “Contemplating dispassion I shall breathe in (I shall breathe out),” thus he trains himself. 15. “Contemplating cessation I shall breathe in (I shall breathe out),” thus he trains himself. 16. “Contemplating relinquishment I shall breathe in (I shall breathe out),” thus he trains himself.