Rav Chaim of Volozhin in his famous work Nefesh HaChaim explains things according to the Litvish philosophy, views etc. Is there a Chassidic work which deals with the same topics as Nefesh HaChaim?
Topics which the book discusses is as follows: Section one is about the nature of the soul and man's role in creation. Section two is about prayer, its true nature as directed meditation and what prayer really does in the context of God's plan: bind the worlds together and nourish them from above. It also describes how the process of repentance operates in re-establishing one's connection to God. Section three is about the nature of God's presence in the world, reconciling unity and duality. The Chapters section between sections three and four addresses how the evil inclination strategizes to divert us. Section four is about the special nature of Torah and the importance of our involvement with it.