The mantra “Hanuman Chalisa,” a devotional hymn devoted to him, is recited by countless persons trying to get his blessings for strength and protection. सप्तैतान् संस्मरेन्नित्यं मार्कण्डेयमथाष्टमम्। In hanuman chalisa the siddhi word means that person has attained these kinds of features by establishing himself into ideal self or atman. https://nerodirectory.com/listings13218343/the-best-side-of-hanuman