Adam is the model through which “G-Dliness” reaches the creation. The inner world (Torah, Mitzvos, and the Collective Yid) also conform to this mode. However in the inner sphere the “Adam” model isn’t for the sake of “Tzimtzum” but for the transmission of the “Essence” in a graspable form. Thus, each aspect of Torah and Mitzvos has the entire Essence. This raises the question of “Portions” in Torah. How can an Essence have (favorite) portions?