Yin and yang are opposites, and yet they are both necessary forces in life. They represent light and dark. Without one, you can’t have the other. This concept of balance can also apply to best friends. Is your best friend the yin to your yang? Do you complete each other despite being opposites? If this is you and your best friend, these best friends yin yang necklaces are perfect for you. A yin yang bff necklace is a great way to tell your friend they are the balance you need in your life.