Shree Ram Jai Raam Jai Jai Raam Jai Seetaaraam, Jai Jai Hanumaan Jai Seeyaaraam, Jai Baaba Hanumaan Seetaaraam Seetaraam
Shri Ram Jai Ram Jai Jai Ram is the song/mantra that Hanuman is always singing. Rama is the name that Maharaj-ji always had on his lips. It is the mantra that purifies the heart and bestows devotion to God.
Tulsi Das says that the name of God is greater than God. He writes in the Ramacharitamanas: "I bow to the Name of Rama... which is unqualified, peerless and a mine of virtues and is the vital breath of the Vedas. The sound of the name of Rama is a beautiful ornament for the ears of the fair damsel in the form of Bhakti (Devotion)... It is like the taste and the gratifiying quality of nectar in the form of emancipation... It is like the bee for the beautiful lotus of the devotee's mind... Install the luminous gem in the shape of the divine name of 'Rama' on the threshold of the tongue at the doorway of your mouth, if you will have light both inside and out..."
In the Ramayana it is told how "Shri Ram collected an army of bears and monkeys and took no little pains over the construction of a bridge [so that his army could cross the ocean to Lanka], but through the repetition of the Name, the ocean of mundane existence itself gets dried up..."