TANYA Iggeret HaTeshuvah Chapter 10 Part Three "Achieving Wellness of Soul" Achieving Emotional Equilibrium; Balancing Joy and Seriousness !
TANYA CHAPTER 31 Part Nine "Joy for Every Body" Maintaining happiness; protecting soul joy from bodily frustration.
TANYA CHAPTER 35 Part Five Kabbalah Footnote on the Primacy of Deed! (PT 4)