By chanting the holy name of God, you associate with God. God is absolute. He's not different from His name. So when you chant God's name means you immediately become in touch with God. And by chanting more and more, your association becomes more and more intimate. Then everything is disclosed to you. That is stated in the Bhagavad-gita. Tesam satata-yuktanam bhajatampriti-purvakam, dadami buddhi-yogam tam yena mam upayanti te. If you keep in touch with God with faith and love, then God is within yourself, He'll give you intelligence how you can go back to home, back to God. There are many different processes oryoga system to be in touch with God, but for the people in thisage, this is the easiest method, to be in touch with God simply by chanting His holy name.