Because Krsna and His energy appeared simultaneously, people have generally formed two groups—the saktas and the Vaisnavas—and sometimes there is rivalry between them. Essentially, those who are interested in material enjoyment are saktas, and those interested in spiritual salvation and attaining the spiritual kingdom are Vaisnavas. Because people are generally interested in material enjoyment, they are interested in worshiping Mayadevi, the energy of the Supreme Personality of Godhead. Vaisnavas, however, are suddha-saktas, or pure bhaktas, because the Hare Krsna maha-mantra indicates worship of the Supreme Lord’s energy, Hara. A Vaisnava prays to the energy of the Lord for the opportunity to serve the Lord along with His spiritual energy. Thus Vaisnavas all worship such Deities as Radha-Krsna, Sita-Rama, Laksmi-Narayana and Rukmini-Dvarakadhisa, whereas durga-saktas worship the material energy under different names.

From Srila Prabhupada’s purport to Srimad-Bhagavatam 10.2.11-12