Navratra are the nine divine nights to worship Shakti. During these nine nights and ten days, nine forms of Shakti/Devi are worshipped. Goddess Durga was the creation of the Trinity - Lord Vishnu, Lord Mahesh (Shiva) and Lord Brahma. She is a warrior with weapons to destroy the evil in and around us and uplift and bless those who worship her with the complete devotion.
According to the myth, Goddess Durga slayed the buffalo demon, Mahishasur. He had unleashed a reign of terror on earth, heaven and the nether worlds, and he could not be defeated by any man or god.
During Navratri, some devotees of Durga observe a fast and prayers are offered for the protection of health and prosperity. A period of introspection and purification, Navratri is traditionally an auspicious and religious time for starting new ventures. During Navratri, the principle of Sree Durga is most active in the atmosphere. She overcomes sorrow and difficulties.
Durga Beesa Yantra is regarded as symbol of power. All the nine powers of Supreme divinity Goddess Durga are worshipped through this Yantra. This can be used for getting luck in business. This has protective powers and can be used for the purpose of meditation. Mahakali Yantra also has protective powers but Durga Beesa Yantra (Beesa Yantra) is proactive and dissipates trouble and negativity before they begin to act upon you.
This Yantra can be used to avoid many troubles such as fear of thief, fire, quarrels and violence etc. Worship of this Yantra as per Adhyaya 4 sloka 17 of Durgasaptashatichandi removes poverty. Worship of Beesa Yantra daily can stop bad dreams. It is considered a powerful Yantra for fulfilment of wishes. It removes difficulties and destroys enemies.
Parad idols give 1000 times more benefits than the puja of idols made of other substances. Parad Durga is a miraculous idol which is considered extremely auspicious for the complete eradication of poverty, sorrow, fear, misfortunes, enemies, conspiracies, obstacles, bad dreams, influence of malefic planets, black magic, evil eye and diseases. By establishing and worshipping Parad Durga during the Navratris, one gets blessings of lord Shiva and Durga.
Hanumat-Durga Pyramid is an extremely effective pyramid and is a source of cosmic and divine energy. Images of Durga and Hanuman are etched on it. By establishing it in office or at home, it increases the positive energy and is good for removing Vastu Dosh as well. It dissipates negativity, fear of enemies, helps in resolving court cases, debts, diseases, removes poverty, evil eye, black magic and brings prosperity and luck.