nÄnÄ ÅÄstra Äni' kailÄ bhakti-grantha sÄra
mÅ«á¸ha adhama-janere teá¹ ho karilÄ nistÄra
nÄnÄ ÅÄstra - different types of scriptures; Äni' - collecting; kailÄ - compiled; bhakti-grantha - of books on devotional service; sÄra - the essence; mÅ«á¸ha - rascals; adhama-janere - and fallen souls; teá¹ ho - they; karilÄ nistÄra - delivered.
ÅrÄ«la ÅrÄ«nivÄsa ÄcÄrya has sung:
lokÄnÄá¹ hita-kÄriá¹au tri-bhuvane mÄnyau Åaraá¹yÄkarau
vande rÅ«pa-sanÄtanau raghu-yugau ÅrÄ«-jÄ«va-gopÄlakau
The six GosvÄmÄ«s, under the direction of ÅrÄ«la RÅ«pa GosvÄmÄ« and ÅrÄ«la SanÄtana GosvÄmÄ«, studied various Vedic literatures and picked up the essence of them, the devotional service of the Lord. This means that all the GosvÄmÄ«s wrote many scriptures on devotional service with the support of the Vedic literature. Devotional service is not a sentimental activity. The essence of Vedic knowledge is devotional service, as confirmed in the Bhagavad-gÄ«tÄ (15.15): vedaiÅ ca sarvair aham eva vedyaá¸¥. All the Vedic literature aims at understanding Ká¹á¹£á¹a, and how to understand Ká¹á¹£á¹a through devotional service has been explained by ÅrÄ«la RÅ«pa and SanÄtana GosvÄmÄ«s, with evidence from all Vedic literatures. They have put it so nicely that even a rascal or first-class fool can be delivered by devotional service under the guidance of the GosvÄmÄ«s.