Āditya Hṛdayam, is a hymn associated with the Sun or Surya and was recited by the great sage Agastya to Rama on the battlefield before fighting with Ravana. This historic hymn starts at the beginning of the duel between Shri Rama with Ravana himself. Sage Agastya teaches Lord Rama, who is fatigued after the long battle with various fighters of Lanka, this procedure of worshiping Surya for strength to defeat the enemy. These verses belong to Yuddha Kanda (Book 6) Canto 107, in the Ramayana composed by Valmiki.
Advantages of reciting Aditya Hridayam Stotram :
Oh Rama, mighty-armed Rama, listen to this eternal secret, which will help you destroy all your enemies in battle.This holy hymn dedicated to the Sun deity will result in destroying all enemies and bring you victory and never ending supreme bliss.This hymn is supreme and is a guarantee of complete prosperity and is the destroyer of sin, anxiety, anguish and is the bestower of longevity.The fruits of this prayer, the method of recital and the procedure followed by Shri Rama, invoking God to bless him with the requisite strength for the victory in the battle field.