This morning I ran across this nice image of the Goddess Durgā. Durgā-devī, is actually the external energy of Kṛṣṇa, the shadow energy of the Lord. People in general worship goddess Durgā, the wife of Lord Śiva, for material prosperity. As devotees of Krishna, we do not worship the demigods or demigoddess’s. As Srila Prabhupada points out;
There is a misconception that there are many Gods. Actually that is not a fact. God is one, but there are many other powerful living entities who are in charge of different departments of administration. They are called demigods. All the demigods are servants who carry out the orders of the Supreme Lord, the Personality of Godhead.
Only the less intelligent worship the demigods for their various purposes. The most intelligent worship only the Supreme Personality of Godhead, Kṛṣṇa.
Sometimes we, the members of the Kṛṣṇa consciousness movement, are accused of not approving of the worship of demigods….
…Because Kṛṣṇa and His energy appeared simultaneously, people have generally formed two groups—the śāktas and the Vaiṣṇavas—and sometimes there is rivalry between them. Essentially, those who are interested in material enjoyment are śāktas, and those interested in spiritual salvation and attaining the spiritual kingdom are Vaiṣṇavas. Because people are generally interested in material enjoyment, they are interested in worshiping Māyādevī, the energy of the Supreme Personality of Godhead. Vaiṣṇavas, however, are śuddha-śāktas, or pure bhaktas, because the Hare Kṛṣṇa mahā-mantra indicates worship of the Supreme Lord’s energy, Harā. A Vaiṣṇava prays to the energy of the Lord for the opportunity to serve the Lord along with His spiritual energy. Thus Vaiṣṇavas all worship such Deities as Rādhā-Kṛṣṇa, Sītā-Rāma, Lakṣmī-Nārāyaṇa and Rukmiṇī-Dvārakādhīśa, whereas durgā-śāktas worship the material energy under different names. ( from purport SB 10.2.11-12)
…But he also points out that we offer all respect to the demigods as they are all servants of the Lord.
The Hare Krishna Movement 