tathapi visayera svabhava--kare maha-andha
sei karma karaya, yate haya bhava-bandha
tathapi—still; visayera svabhava—the potency of material enjoyment; kare maha-andha—makes one completely blind; sei karma karaya—causes one to act in that way; yate—by which; haya—there is; bhava-bandha—the bondage of birth and death.
"Those who are attached to materialistic life and are blind to spiritual life must act in such a way that they are bound to repeated birth and death by the actions and reactions of their activities.
nunam pramattah kurute vikarma
yad-indriya-prita ya aprnoti
na sadhu manye yata atmano 'yam
asann api klesada asa dehah
"A materialistic person, madly engaged in activities for sense enjoyment, does not know that he is entangling himself in repeated birth and death and that his body, although temporary, is full of miseries." (Srimad-Bhagavatam 5.5.4) A visayi, a person blindly caught in a web of materialistic life, remains in the cycle of birth and death perpetually. Such a person cannot understand how to execute pure devotional service, and therefore he acts as a karmi, jnani, yogi or something else, according to his desire, but he does not know that the activities of karma, jnana and yoga simply bind one to the cycle of birth and death.
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