In this material world there are Jnanis and Karmis.
The karmis are fools who unnecessarily work very hard, and the jnanis are those who, when a little elevated, think, "Why work so hard? So many things are not required. Why accumulate so much money and food and so much false prestige?" The jnani thinks in this way.
The bhakta, however, is beyond the karmi and jnani. The karmi has many desires, and the jnani tries to get rid of all desires, but desirelessness can be possible only when we desire to serve Krsna. Otherwise it is not possible to get rid of desires.
As bhaktas, we should have no desires for jnana and karma. We should be without attachment for material things, but we must have attachment for Krsna. In this way our detachment will be fixed.