Hanuman Chalisa is a beautiful prayer (hymn) written by Indian poet saint Tulsidas dedicated to Lord Hanuman.
Lord Hanuman is a vanar (monkey) and one of the central characters of the Indian epic Ramayan. He was a disciple and a great devotee of Lord Rama. He had immense powers. Strength ,courage, wisdom ,bravery ,devotion were some of the qualities of Lord Hanuman.
This Chalisa recited daily keeps one stable and free from all sorrows and fear.