Those people were imagining that they and their descendants will enjoy the fruits of their labours, though in reality everyone of the house so built or the article so collected will have to be accounted for on the Day of Judgement, the day when people will be rewarded or punished according to their deeds, the day on which evil doers will suffer for their vicious and wicked ways. Your mind will corroborate and confirm this if it is kept free from intemperate ambitions, from lust for alluring things, from sensuality and from vicious affections and attachments.