Hanuman Chalisa

Hanuman Chalisa is a Hindu devotional hymn in praise of Hanuman. It was authored by Tulsidas in the Awadhi language, and is his best known text apart from the Ramcharitmanas.
Word "chālīsā" is derived from "chālīs", which means the number forty in Hindi, as the Hanuman Chalisa has 40 verses (excluding the couplets at the beginning and at the end)
Every time we experience negativity in the world and within ourselves, every time we encounter jealousy, rage, and frustration, manifesting as violation and violence, we hear, or read, the Hanuman Chalisa. Composed over four hundred years ago by Tulsidas, its simple words in Awadhi, a dialect of Hindi, and its simple metre, musically and very potently evoke the mythology, history, and mystery of Hanuman, the much-loved Hindu deity, through whom Vedic wisdom reached the masses. As verse follows verse, our frightened, crumpled mind begins to expand with knowledge and insight, and our faith in humanity, both within and without, is restored.