Brahma is often depicted with four heads, each facing a different direction to symbolize his ability to see all things.
Brahma has 4 heads, He holds a letter in his left hand and wears a crown ...
He has four arms and four heads.
Brahma used to have 5 heads, but now he has 4. This is because he lied to Vishnu, the Procter of the universe. 1 day Brahma and Vishnu argued about who is stronger and greater. They try to settle it by a competition, they each will reach Shiva Lingam at the very high heavens and below the earth, and the both will reach to ground 0 again. As Brahma got on his swan and soar to the sky, Vishnu turned into a boar and dug into the earth. Afterwards, Vishnu gave up hope, he began to feel tired and began to feel hungry. He came to ground 0. Meanwhile, Brahma also began to feel tired he saw a Mallika Flower. Brahma found out the flower was from Shiva Lingam, he thought he could trick Vishnu by saying he got it from Shiva Lingam, when he just got it in the middle of the air. Brahma went down to ground 0 and told Vishnu the lie. Suddenly Vishnu called out, "LIAR!" Vishnu became furious of Brahma because of his lie so much that he cut of one of Brahma's head and said he won't except any Mallika Flower in his worships again And that's how Brahma lost one of his 5 heads
to see every one in the world
It represents his omniscience, that he sees in all directions.The 'Brahma' is the name given to the creator of an Universe. Its simply a title,like that of an minister.This implies that there are innumerable Brahmas creating and controlling innumerable universes. The number of heads given to a particular Brahma depends on the size of the Universe under his supervision. As a result our Brahma has four heads as he controls our universe sizing 4 billion light years.Hindu literature tells that there are Brahmas with even trillions of heads.Another reason given in the literature is, with his four heads Brahma is continually reciting our four Vedas. namely Rig Veda, Sama Veda, Yajur Veda , Atharva Veda, for the well being of his material creations of the Universe.
Shiva got angry ate Brahma because legend says that Shiva's wife was cheating on him with Brahma. So Shiva destroyed and burned Brahma Fifth head. Since he is the destroyer not really a shock.
The Brahmashirā Astra (Brahma's head weapon), manifests with four heads of Brahma at the front and is four times stronger than the normal Brahmastra. Arjuna, Drona, Karna, Ashwatthama and Bhishma possessed this knowledge in Mahabharata.
Brahma granted Hiranyaksha the boon of being killed only by Vishnu, believing that such an event would be highly unlikely.
Its because of Rishi Brugumuni's curse. When he visited Brahmalokam, Lord Brahma was immersed in Goddess Saraswati's Veena and didnt notice the arrival of Rishi. Rishi got angry and gave Lord Brahma the curse that there will not be any temples in the Universe for him.
Brahma is a Creator
Lord Brahma or Bramha is the Hindu deity responsible for creation, it is said in the ancient vedas or scriptures that he was the one who gave birth to the world as we know it. he is depicted to have 4 heads facing 4 directions. however he is one of the most scarcely worshiped deity in Hindu religion.