After chanting this Hymn three times Sri Rama defeated Ravana.
Sage Agasthya Muni gave this powerful Mantra to Sri Rama when Rama was perplexed, while fighting with Ravana. Aditya Hridayam - The Heart of Aditya (the Sun God) - Sundara Khanda, Valmiki Ramayanam Aditya = the Sun God Hridayam = that which is especially nourishing and healing for the heart.
