Practical action is the best way to show our determination. So while chanting, we should show our determination to be attentive. This attracts Krishna's attention.
Determination means to serve Krishna inspite of bodily inconveniences.
To discriminate between what is wrong and to be determined to do what is right is called determination.
In order to follow the path of great souls, there must be determination.
Fierce Determination and Gentle Humility are the ornaments which make one attractive in the eyes of the Lord.
Sometime because of the mercy of the Lord, the holy abode or the kirtan, everybody may feel some ecstasy, but then after the kirtan is over, after the narration is over, then mind goes back down to some lower level. However, if you like the mind to always remain in the ecstatic level, then we have to get purified. So we need to have a determination to go on with the process, no matter what.