In the beginning, the Universe was covered with darkness, the universe was filled with darkness, the universe was only darkness. There were no sun,no moon ,no stars nor anything at that time. No little patch of fire, air, water, ether existed at that time. There was only emptiness. Emptiness everywhere. At that time 'sath' existed. Sath had no shape, no color, no personality. It was neither big nor small. Briefly, Sath is Satyam(the truth). It is the knowledge, happiness and other emotions.
The shapeless Brahma evolved according to the wishes. It turned into a Jyothirlingam. This Lingam was known as the Brahmandam(the Universe). This andam split and then began the inception of the nondestructive 'Virat Pursh'. He/she was the only thing existed at that time. He/she existed everywhere. He/she had many faces and eyes in every direction. He/she could see without eyes and hear without ears. It was impossible to see him/her in full form.
This NirakaraRupa(formless) ParaBrahma, after many yugas, wished for something else. He/she wished for the evolution of millions from one. At that moment, he/she decided to be in a form by using his/her own powers. That idol was with all greatness, all knowledge and was a Godfigure for everyone. Parabrahma without a body-and that idol is Lord 'SadaSiva'.
At one time, Siva and ParaSakti became close as husband and wife. Being happy, they wished for something. To create someone to do the job of 'Creation'. With these thoughts Siva with Sakti applied Amritam on the ten organs of the left side of his own body. After sometime, from that part, born a person who is handsome of all three worlds and with the goodness of million suns.
That great man worn a crown of gold. The beauty of his body was challenging to all ruby and emeralds. Covered with jewelery and ornaments,he worn a robe made up of gold. He has strong hands and eyes resembling to lotus. He existed everywhere, therefore he came to be known as Vishnu.
At the time of creation, nature entered Vishnu. Greatness was made and pride evolved from it. Pride split into Emotions, Brilliance and Anger. From the anger, sky was evolved, from the sky air was evolved, from the air fire was evolved and from the fire water was evolved. Vishnu brought consciousness to the five elements. Vishnu's vigor was thrown out in water. This vigor is known to be the 'Life'.
From the pride brilliance evolved all senses and from pride emotions evolved ten emotional Devas and the eleventh sense the mind.
The Vigor which was thrown out by Vishnu evolved and became an andam. That andam gave the birth of BrahmaDev. Vishnu broke that andam into two. He made one part as Heaven and the other as Earth.
After that, Lord Vishnu meditated for a very long time. Because of the impact of the mediation, fountains were started to appear in different parts of his body.
That water filled the empty sky. At that time, being tired, Lord Vishnu fell asleep. He slept there for very long time, satisfied. Because of sleeping in water(Nara), Lord Vishnu got the name 'Narayan'.
At that time, there were no elements in nature except Narayan. While he was sleeping on water, a lotus began to grow from his navel. The lotus was full of beautiful petals and appeared as bright as the sun.
After that, Maheswar created BrahmaDev from the left side of his body. By the wishes of illusion BrahmaDev sat on the lotus which came from the navel of Lord Vishnu. BrahmaDev meditated and earned power. BrahmaDev, with his power continued the creation process and life began on the Universe.