Change is constant. Sometimes it's direct whereas sometimes it's not but changes in our personality are defined by what props we use. As kids, we love crayons whereas as adults we prefer cigarettes. As kids, we're busy playing games whereas our entire adulthood is taken by files and folders. That change is indeed internal but the visibility is external. We use roses for our first crush whereas we use a ring for our lover. "Badlaav" is a story of such visible changes a human being goes through in their entire lifetime. It is not the story of one individual but every person in general.