If we study the history of the world, we see that it is simply a history of struggle. Mankind attempts to relieve its miserable condition, but it simply brings about another miserable condition. As we try to overcome one problem, another problem arises. Our determination to renounce our association with this material world is called mukti. Mukti means coming to the spiritual platform. Since we belong to the spiritual atmosphere, it is impossible for us to be happy in the material atmosphere. If a land animal is placed in water, he will simply struggle for existence, despite being an expert swimmer. We have come into this material world to gratify our senses, but our attempts will never be successful. If we actually want to attain a state beyond fear, we have to accept this bhakti-yoga process enunciated by Lord Kapiladeva.
Srila Prabhupada, TLK Vs 43