Benefits of chanting and going back to Godhead
Chanting has many benefits. Our minds become purified so we can understand our spiritual nature. Right now we identify ourselves with our bodies and minds and thus we're often in pain or perplexity. When we realize our spiritual nature through chanting, we will no longer identify with these.
Both controlling the senses and going back to Godhead can be accomplished by chanting. Krishna likes when we call His names with sincerity, and since He's the Lord of all benedictions, all spiritual and material perfections are possible for one who chants.
One big difference between here (this material world) and going back to Godhead (the spiritual world) is that in the spiritual world there's no inconvenience of death, which tears us away from our friends, family, and property and forces us to start from square one in our next life.