Sefer Etz Chaim and Tanya

Both texts discuss Netzach and Hod in kabbalistic context. Text 1 (Etz Chaim) emphasizes their role in the configuration of partzufim during prayer and Shabbat, focusing on the dynamic movement of the Nukva (feminine principle) ascending into Hod and descending into Netzach as part of the theurgic process. Text 2 (Tanya) emphasizes the functional role of Netzach and Hod as 'kidneys giving counsel' (קליוות יועצות) and their biological analogy as vessels that refine intellectual emanation from the father's mind into a form receivable by the son. Text 1 stresses the liturgical and temporal dimension (weekday vs. Shabbat), while Text 2 stresses the psycho-intellectual dimension of how divine intellect is transmuted and refined.