The karmis are generally engaged in fruitive activities for material bodily comforts. The jnanis, however, are disgusted with searching after material comforts. They understand that they have nothing to do with this material world, being spirit souls. After self-realization, the jnanis who are actually mature in their knowledge must surrender unto the lotus feet of the Lord, as stated in Bhagavad-gita (bahunam janmanam ante [Bg. 7.19]). Self-realization is not complete unless one comes to the devotional platform. Therefore it is stated in the Srimad-Bhagavatam that those who are atmarama, self-satisfied, are freed from all contaminations of the material modes of nature. As long as one is affected by the modes of material nature, especially by rajas and tamas, he will be very greedy and lusty and will therefore engage in hard tasks, laboring all day and night. Such false egoism carries one from one species of life into another perpetually, and there is no rest in any species of life. The jnani understands this fact and therefore ceases to work and takes to karma-sannyasa.