About The Hymn Hanuman chalisa is a sacred and one of the most powerful hymns to Hanuman composed by the great sage Tulasidaasa - The author of Raamayana in Hindi. He was a very great devotee of Raama and Hanuman and have had visions of Hanuman many times in his life. He was well-versed in Puranas Agamas and Mantra shastras. The translation and commentary In this sacred hymn Tulasidaasa praises the greatness of Hanuman and also many great deeds done by him. There are many secrets of mantra shastra - the method of ritualistic worship hidden in the hymn. different forms of Hanuman are praised in different dohaas (couplets) In this book each verse of Hanuman chaalisa is elaborately explained with the help of Veda, Purana, and mantra shashtras. incidents showing Hanuman's great qualities are quoted from different sacred scriptures. The word by word meaning of the hymn is also explained.