Hanuman Chalisa is a devotional song based on Lord Hanuman as the model devotee, it is written by Mahakavi Goswami Tulsidas in the sixteenth century in praise of Lord Hanuman. It is very popular among a lot of modern Hindus and is generally recited on Tuesdays (considered a holy day for devotees of Lord Hanuman). The song is called a Chalisa as it contains forty (Chalisa in Hindi) verses. The structure of the poem is extremely simple and rhythmic, thus making it all the more popular. The word "chālisā" is derived from "chālis" in Hindi, which means 40, as the Hanuman Chalisa has 40 verses. The Bajrang Baan is a very powerful prayer dedicated to the Hindu god hanuman. The literal meaning is the arrow of Bajrang Bali or hanuman. The recitation of the Bajrang Baan early in the morning or just before going to bed is recommended.