We work with our mind and intelligence. So if our intelligence and mind are always engaged in the thought of the Supreme Lord, then naturally our senses are also engaged in the service of the Lord. That is the secret of Bhagavad-gītā. One has to learn this art, how one can be absorbed both by the mind and intelligence twenty-four hours thinking of the Lord. And that will help one to transfer himself into the kingdom of God or in the spiritual atmosphere after leaving this material body. The modern scientists, they are trying for years and years together for reaching the moon planet, and they have no approach as yet.