Srimad Bhagavatam Canto 03, Chapter 04, Text 35

SB 3.4.35

atmanam ca kuru-srestha
 krsnena manaseksitam
dhyayan gate bhagavate
 ruroda prema-vihvalah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Understanding that he was remembered by Lord Krsna [while quitting this world], Vidura began to cry loudly, overwhelmed by the ecstasy of love.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Vidura was overwhelmed by the ecstasy of love when he understood that Lord Krsna, the Supreme Personality of Godhead, thought of him at the last moment. Although he thought of himself as insignificant, he was remembered by the Lord, by His causeless mercy. Vidura accepted this as a great favor, and thus he cried. This crying is the last word in the progressive path of devotional service. One who can cry for the Lord in love is certainly successful in the line of devotional service.
Srimad Bhagavatam Canto 03, Chapter 04, Text 34
Srimad Bhagavatam Canto 03, Chapter 04, Text 36