Lighting is an essential element in creating the mood and functionality of any environment. Whether it is a warm home, an energetic office, or a lively restaurant, proper lighting can make a space more beautiful, more functional and more emotive. Interior design is not merely about selecting the perfect furniture or colours for the walls; lighting is just as significant in creating the mood and maximizing the potential of a space. Knowing how lighting impacts the varying dimensions of a room can allow for better design decisions that comply with both aesthetics and functionality.