SB 4.24.7
tatrapi hamsam purusam
paramatmanam atma-drk
yajams tal-lokatam apa
kusalena samadhina
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Although Maharaja Antardhana was engaged in performing sacrifices, because he was a self-realized soul he very intelligently rendered devotional service to the Lord, who eradicates all the fears of His devotees. By thus worshiping the Supreme Lord, Maharaja Antardhana, rapt in ecstasy, attained His planet very easily.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Since sacrifices are generally performed by fruitive actors, it is especially mentioned here (tatrapi) that although Maharaja Antardhana was externally engaged in performing sacrifices, his real business was rendering devotional service by hearing and chanting. In other words, he was performing the usual sacrifices by the method of sankirtana-yajña, as recommended herein:
sravanam kirtanam visnoh
smaranam pada-sevanam
arcanam vandanam dasyam
sakhyam atma-nivedanam
(Bhag. 7.5.23)
Devotional service is called kirtana-yajña, and by practicing the sankirtana-yajña, one is very easily elevated to the planet where the Supreme Lord resides. Out of the five kinds of liberations, achieving the same planet where the Lord resides and living with the Lord there is called salokya liberation.