Why is Psychology So Important?

Psychology studies the human mind and behavior, but why is it so important? I'd certainly say that psychology helps us, human beings, understand ourselves and others, but most important it helps ourselves understand who wea re and why we are here. In addtion, psychology not only helps us understand ourselves but it helps us endure life through understanding and in several different perspectives. I'd day that psychology takes a huge roll in our lives since through understanding we would be able to achieve peace among everyone of us.