Tanya is the foundational work of the Chabad movement. It lays down the practical and mystical fundamentals of the Chabad philosophy. It was authored by Rabbi Schneur Zalman of Liadi (1745-1812), the founder of the Chabad-Lubavitch movement.The major theme of Tanya is the ubiquitous Identity Crisis.There are days when one indeed feels inspired by Judaism and spirituality, and there are days when they are a real bore. There are times when nothing seems more important than studying Torah or praying, and there are times when nothing seems greater than a steak and a good ballgame. There are moments when one is disgusted by the world's immorality, and there are moments when one is tempted by it.So, who are we? Are we to ignore our beastly temptations, or come to terms with them? And how is it that people possessing a G‑dly soul can be filled with such animalistic desires?It is Tanya that guides us through our dual personality. It gives us the insight to understand and overcome the struggles we deal with on a day-to-day basis.