As described in the previous verse, people who have no taste for the devotional service of the Lord are occupied in material engagements. Most of them engage during the daytime in hard physical labor; their senses are engaged very extensively in troublesome duties in the gigantic plants of heavy industrial enterprise. The owners of such factories are engaged in finding a market for their industrial products, and the laborers are engaged in extensive production involving huge mechanical arrangements. Factory is another name for hell. At night, hellishly engaged persons take advantage of wine and women to satisfy their tired senses, but they are not even able to have sound sleep because their various mental speculative plans constantly interrupt their sleep. Because they suffer from insomnia sometimes they feel sleepy in the morning for lack of sufficient rest. By the arrangement of supernatural power, even the great scientists and thinkers of the world suffer frustration of their various plans and thus rot in the material world birth after birth. A great scientist may make discoveries in atomic energy for the quick destruction of the world and may be awarded the best prize in recognition of his service (or disservice), but he also has to undergo the reactions of his work by rotating in the cycle of repeated births and deaths under the superhuman law of material nature. All these people who are against the principle of devotional service are destined to rotate in this material world without fail.