During the history battle of Ramayana, when Lord Rama was going towards Lanka to fight Ravana, at a place during the night they all slept and said Hanuman ji to stand in front of the door to provide Lord Rama and Laxman security, Ravana sent a clone demon in the form of Vibishana. Vibishana clone kidnapped them and took them to Patal Lok to Ravan's brother Ahiravan's palace under the sea. When Hanuman Ji got to know about it, he entered Patal Loka. He discovered during his investigation that Ahiravana's life is concealed by the five lamps. The lamps were arranged in various directions. Ahiravana believed that he could only be killed if he simultaneously extinguished all five lamps.
Hanuman ji takes the form of Panchmukhi Hanuman to finish Ahiravana's terror. The five faces are:
1. Lord Hanuman: The front face is of Lord Hanuman, the god who gave us power. Hanuman ji face direction is east. By worshiping Lord Hanuman, devotees can bring peace, fulfillment, and happiness into their lives.
2. Lord Garuda: Lord Garuda is basically a big eagle bird that is the vehicle of Lord Vishnu. Lord Garuda is mentioned once in the Ramayana when Meghnath, son of Ravana, throws snakes on the army of Lord Rama. He faces toward the west. People worship Garuda to remove evil spirits and black magic from their lives.
3. Lord Narsimha: The avatar of Lord Narayan. Lord Narsimha was apprehended in Satyuga to save devotee Pahlad from his father and demon king Hirayanakashyap. Lord Narsimha is half lion and half human. He faces south. Devotees worship Lord Narsimha to remove fear from their lives and become fearless people.
4. Lord Hayagriva: Lord Hayagriva is an avatara of the god Vishnu. He is a white horse faced with a human body god having a lotus in his hands. He faces upward direction. He is worshipped for knowledge and wisdom.
5. Lord Adivarha: He is one of the dasavtaras of Lord Vidhnu. He is a god in the form of an Indian boar. He appears first in Satyug when a demon stole earth and he took back eath by putting on his noose. He faces north. He is worshipped to bring wealth into life by devotees.
There are some basic steps you must have to follow to wear kavach:
1. To wear Panchmukhi hanuman kavach, you need to worship Lord Hanuman every Tuesday.
2. In the morning, wear red or yellow; after taking a bath, wear orange to impress Lord Hanuman.
3. Make a chowki for Lord Hanuman by putting a red cloth and a Lord Hanuman idol on a small table.
4. Sprinkle ganga jal around the idol and then in the whole house.
5. Light a diya in front of the idol and nake bhog of churma.
6. Take blessings of Lord Hanuman and wear the kavach.
