What's The Purpose of Pilgrimage?

One of the attendees asks about the purpose of going on Pilgrimage, to this Dandapani answered that the reason behind why Hinduism encourage to go on pilgrimage once a year is that it takes you out of your daily routine and takes you away from the things you do on daily basis to somewhere sacred which has a higher energy.
In Hinduism, most of the Hindu's go to the pilgrimage like temples in India, Srilanka and Nepal that are highly energized.
He explains that the main idea of pilgrimage is to take yourself to the next version of you and he suggests that clear your intention before going on pilgrimage.