Belonging: At the very least, you will connect with the person at the other of the dialogue, the author. Reading reminds you that you are not alone. Your struggles and dreams are shared. Your life is a part of a larger ecosystem. The greatest books comfort you with this sense of belonging.
Empathy: Reading flexes your empathy. It works your capacity to connect to another person and invest yourself in their story. Even if you vehemently disagree with them, you get to know them, and as any script writer will tell you, that is how you end up using that giving-a-damn muscle.
Humility: Give any book the opportunity and it will teach you something. It will at least teach you what not to do or say or believe in. But in order for anything to happen, you have to give it a chance, and to give it a chance you need to be humble. You need to think, OK, let me put down my ego and hear ya out.
Confidence: Reading challenges you. Taking a book seriously means risking the chance of finding an adversary.
Presence: Reading helps you remain calm. It's as therapeutic as anything else. Once you start digging into a book that's caught your attention, time ceases to exist, your mind is completely immersed in what is in front of you.
Joy: Reading is a pleasure -- it ought to be. Nobody has any time to read books you don't like. Life is too short to read books that don't bring you joy, or worse, that don't matter at all. Read what enriches your life, and your life will change because of it.