It may seem a little strange to define a room's purpose, considering each room's name connotes its function, but dig a little deeper. Your living room is for living your best life, but what does that truly mean?
To some, it might mean casual conversation with friends or a good place to read your paperback novels. For others, it may mean watching movies. And for some, it could be a space to play games.
Identifying the purpose of your room establishes your objective. It clarifies what you need to do to the room. If your living room is meant to be a space to share with friends, how can you move things around to best-fit people comfortably? Do you need to remove furniture? Are you missing anything, like an end table?
Once you define the purpose of a room, the pieces of your vision will begin to fall into place, until voila! Your room is everything you wanted.