2.33

This sūtra introduces the powerful practice of pratipakṣa bhāvanam, often translated as "cultivating the opposite." It offers a practical, psychological method for dealing with negative or unwholesome mental patterns, especially those that conflict with the yamas and niyamas.

Edwin Bryant (The Yoga Sūtras of Patañjali, 2009): "this sūtra is profound in its implications and provides a means of performing a type of mindfulness meditation for yogīs, whereby one consciously adjusts the types of saṁskāras one allows in one’s citta."