Mukti, or liberation, means becoming free from the results of fruitive activities. As stated in Srimad-Bhagavatam (2.10.6): muktir hitvanyatha-rupam. Mukti means giving up all other activities and being situated in ones constitutional position (svarupena vyavasthitih). In this conditional state, we are entangled by one fruitive activity after another. Karma-bandhana means the bonds of fruitive activity. As long as ones mind is absorbed in fruitive activities, he has to manufacture plans for happiness. The bhakti-yoga process is different, for bhakti-yoga means acting according to the order of the supreme authority. When we act under the direction of supreme authority, we do not become entangled by fruitive results. For instance, Arjuna fought because the Supreme Personality of Godhead wanted him to; therefore he was not responsible for the outcome of the fighting. As far as devotional service is concerned, even hearing and chanting is as good as acting with our body, mind and senses. Actually, hearing and chanting are also activities of the senses. When the senses are utilized for ones own sense gratification, they entangle one in karma, but when they are used for the satisfaction of the Lord, they establish one in bhakti.