The demigods and the Vaisnavas especially are part and parcel of the Supreme Lord, Visnu, because they are always obedient to His orders (om tad visnoh paramam padam sada pasyanti surayah). The demoniac followers of Kamsa thought that if the Vaisnavas, saintly persons and sages were persecuted, the original body of Visnu would naturally be destroyed. Thus they decided to suppress Vaisnavism. The asuras perpetually struggle to persecute the Vaisnavas because they do not want Vaisnavism to spread. Vaisnavas preach only devotional service, not encouraging karmis, jnanis and yogis, because if one must liberate oneself from material, conditional life, one must ultimately become a Vaisnava. Our Krsna consciousness movement is directed with this understanding, and therefore the asuras always try to suppress it.