From the recording Ann Arbor Holiday Kirtan 2010
Hanuman, with a body and mind made of steel, is the great and devoted disciple/student of Ram (the One who personifies kindness and all divine attributes). Hanuman's loyalty to his teacher matches his own inner strenght and courage. This is metaphor for our own spiritual resolve to seek truth no matter what difficulty or obstacle occurs on the path.
Lyrics
Bajarangi Hanuman
Sri Ram Jai Ram Jaya Jaya Ram