Vanisource:Sloka of the day/May 29, 2008
jñānena dṛṣṭa-tattvena
vairāgyeṇa balīyasā
tapo-yuktena yogena
tīvreṇātma-samādhinā
This devotional service has to be performed strongly in perfect knowledge and with transcendental vision. One must be strongly renounced and must engage in austerity and perform mystic yoga in order to be firmly fixed in self-absorption.