[3] In the Treta Yuga (2nd age), various events occur, including the defeat of demons by Lord Vishnu, which leads to the birth of positive and negative forces.
The birth of God becomes necessary to eliminate the terror of Ravana, leading to the birth of two of the most powerful and mutually attached gods[clarification needed]: Shri Rama and Hanuman, sons of Ayodhya's King Dashrath and the ape-headed King Kesari[clarification needed] respectively.
[clarification needed] Shri Ram asks Hanuman to perform worldly duties until the call of time.
As time passes, friendship between Sri Rama and Hanuman grows, but after many dramatic events Shri Rama—along with his co-incarnated fellows Laxman, Sita, Shatrughna and Bharat—leaves Earth.
[clarification needed] The sermon of Bhagavad Geeta and the 18 Days Battle of Kurukshetra take place, leading to a victory for Dharma.
Hanuman takes the responsibility of sowing the seeds of Dharma along with spreading the fame of Sri Rama with the help of Goswami Tulsidas, who is the incarnation of Maharishi Valmiki.
After a long period Tulsidas leaves for Vaikunth, and Hanuman carries on the responsibility of sowing the seed of morality all by himself.