Sefer Etz Chaim and Tanya

Both texts accept shevirat-hakelim and the presence of nitzotzot (holy sparks) within klipot that require elevation. Text 1 (Etz Chaim) emphasizes the comprehensive refinement process across all levels (domem to medaber) through human action and consciousness (machshavah), with detailed stages of purification. Text 2 (Tanya) focuses specifically on how worldly wisdoms contaminate the divine faculties (chokhma-binah-daat) of the soul through klipat nogah, tracing the sparks' fall to the posterior dimensions of holy chokhma. Both address nitzotzot trapped in kelim from shevirat-hakelim, but Etz Chaim stresses the ascending refinement process while Tanya emphasizes the contamination mechanism and source of the fall. No substantive contradiction on the core doctrine exists.