What does Judaism mean to you?

I was raised Christian but maintained some awareness of Christianity's roots in Judaism. I am also ethnically descended from some Jews. I want to learn more about this part of my bloodline and cultural heritage- part that unfortunately was mostly ignored in recent generations- and want to meet others and hear what being Jewish means in their lives. What do you love about being a Jew, and what aspects are hardest for you? Also, does anyone have recommendations for really good books exploring Judaism?