"The supreme occupation [dharma] for all humanity is that by which men can attain to loving devotional service unto the transcendent Lord. Such devotional service must be unmotivated and uninterrupted to completely satisfy the self."

sa vai puṁsāṁ paro dharmo
yato bhaktir adhokṣaje
ahaituky apratihatā
yayātmā suprasīdati

Meaning :

The supreme occupation [dharma] for all humanity is that by which men can attain to loving devotional service unto the transcendent Lord. Such devotional service must be unmotivated and uninterrupted to completely satisfy the self.