[b]I, 33 Maitri karuna mudita upeksananam sukha dukha punya apunya visayanam bavanatah citta prasadanam
By cultivating attitudes
thoughts become purified,
and the obstacles
to self knowledge
A perfect gem.
Iyengar, Sw. Satchidananda and Sw. Shyam agree that this sutra concisely states how one can achieve a serene mind by applying the appropriate attitudes towards the four main types of people/situation one encounters.
Simple yet profound.
Mukunda provided the following ayurvedic insights:
Happiness is a kapha condition therefore meet happiness with friendliness to increase kapha for both. Allow the prana to come in. For those that connect with Devi, happiness/friendliness is an aspect of KARUNA DEVI (or LAXMI) who is an ocean of compassion.
Suffering is a condition of deranged vata therefore requires compassion with discernment which increases kapha and pitta in the sadhaka and reduces vata in the sufferer. In my personal experience, compassion without discernment increases vata for both. For those that connect with DEVI, ask TARA who embodies discerning compassion for guidance and surrender to KALI so that the force of transformation can flow through.
Virtue is a kapha condition therefore meet virtue with delight to increase kapha for both; this is an aspect of KARUNA DEVI (or LAXMI).
Vice/Wickedness is a condition that increases vata and pitta therefore meet it with equanimity and utilize it as an opportunity to cultivate sattvic state. Ask TARA for help with detachment and offer up the vice to be burned by KALI.
Iyengar, B.K.S., Light on the Yoga Sutras of Patanjali. New Delhi, India: Harper Collins Publications India. 1993
Swami Satchidananda, The Yoga Sutras of Patanjali. Buckingham, VA: Integral Yoga Publications. 2004
Stiles, M., Yoga Sutras of Patanjali. Boston, MA: Red Wheel/Weiser LLC. 2002.
Discussion with M. Stiles. (3 or 4 November, 2005. Integral Yoga Center, NYC)