Can someone tell what do Chardham Yatra means in Hindu religion. Many people every year undertake this yatra. It is said that the yatra holds religious importance in Hindus. So please explain about the yatra.
As per the article the-coming-of-hastamalaka from official site of Sringeri mutt, Shankaracharya established 4 mutt(associated with 4 dhams Badrinath, Dwarka, Puri and Sringeri) in four directions in order to spread the spiritual wisdom and peace for all the seekers. Therefore as per this we can make out that people do this chardham yatra for addhyatmic(spiritual) progress and peace.
The four Amnaya Mutts
Shankara consolidated his work by establishing in the four directions, four Mutts called Amnaya Mutts to sustain and foster the sacred tradition of Sanatana Dharma. Keeping in mind that the Mutts should serve as places of spiritual wisdom and peace for all seekers of the Truth, Sri Shankara chose spots bountiful with natural splendor and serenity. Sri Shankara chose Puri in the East and Dwaraka in the West, both being located on the shores of the sea. The Acharya also chose Badrinath in the North and Sringeri in the South for the natural aura that these places had, owing to the towering scenic mountains and at both places.
Sri Shankara assigned one Veda for each of the Mutts, signifying that each Mutt would play a significant role in taking efforts to sustain and propagate that particular Veda. Thus Rig, Yajur, Sama and Atharvana Veda were assigned to Puri, Sringeri, Dwaraka and Badrinath Mutts respectively. Sri Shankara also nominated his four chief disciples, one to each of these Mutts. He assigned Sureshwara to Sringeri, Padmapada to Dwaraka, Hastamalaka to Puri and Totaka to Badri. That all these Mutts function to this day shows the vigour of the movement started by Shankara for the propagation of Advaita Vedanta and Sanatana Dharma as a whole.