Why is it important to have a Goal??

Well, there are so many reason to have a Goal in life. Well the main one in my opinion is to know where you are going in life, and other respectives. There would be some other reasons like maybe other personal reasons, like to impress someone to get a better self-image of yourself and by others.
Or, ucould be inspired by someone close, or someone you respect that you would want to be like them in many ways or maybe just a few reasons.