Such deluded persons, symptomatically, dwell in dualities of dishonor and honor, misery and happiness, woman and man, good and bad, pleasure and pain, etc., thinking, "This is my wife; this is my house; I am the master of this house; I am the husband of this wife." These are the dualities of delusion. Those who are so deluded by dualities are completely foolish and therefore cannot understand the Supreme Personality of Godhead.
...only a fool would believe in miracles because - let us say you are a child and an adult lifts this table. That's a miracle. Or you're a chemist and you combine acid and base and you make smoke, an explosion or whatever. To somebody ignorant, that's a miracle. But for everything there is a process, and so when you see a miracle, it's just ignorance of the process. So that only a fool would believe in miracles...
For sense gratification, a man in the mode of passion wants some honor in society, or in the nation, and he wants to have a happy family, with nice children, wife and house. These are the products of the mode of passion. As long as one is hankering after these things, he has to work very hard. Therefore it is clearly stated here that he becomes associated with the fruits of his activities and thus becomes bound by such activities. In order to please his wife, children and society and to keep up his prestige, one has to work. Therefore the whole material world is more or less in the mode of passion.
O son of Kunti, the nonpermanent appearance of happiness and distress, and their disappearance in due course, are like the appearance and disappearance of winter and summer seasons. They arise from sense perception, O scion of Bharata, and one must learn to tolerate them without being disturbed.