What is the significance of a mantra in Hinduism and how is it used in spiritual practices?

In Hinduism, a mantra is a sacred sound, Word, or phrase that is repeated during meditation or prayer. Mantras are believed to have spiritual power and can help focus the mind, connect with the divine, and bring about positive changes in one's life. They are used in spiritual practices to aid in concentration, promote inner peace, and deepen one's connection to the divine.