In this lecture extracted from his darshan on 6th September, 2010, Srila Acharya Maharaj explains the difference between devotion and emotion, and gives examples of sincere service temper.
[audio:http://gaudiyadarshan.com/wp-content/uploads/2011/08/100906-Service-Temper.mp3|titles=100906 Service Temper]He begins by citing this verse: