Your choices can affect the other people in the relationship because if you do something bad to your friend they wouldn't want to be your friend. So that would be a bad reputation for your self. If you decide to drink (alcohol) or smoke (anything) people will think you're a bad person.
whether it's what to eat for breakfast — a doughnut or egg whites — or even what kind of car to buy, nearly all of our decisions will have some effect on our lives.
It's the major decisions, though — involving careers, choosing a spouse, whether to have children — that will inevitably write our legacies. And while it's probably acceptable to buy a new shirt without seeking outside counsel, is it wise to completely change your life without letting loved ones weigh in?
Shah Jahan created the Taj Mahal to be the a grand mausoleum for his wife. We know that ultimately, he really loved her. I'm not sure which story or passage you are referring to is, but with this story being so well known it would be difficult for the story to not be the main focus.