The Symbolism of the Mitzvos
A central theme of Rav Shimshon's writing is the possible meanings and symbols behind the mitzvos and passages of the Torah. This theme stands at the heart of Horeb and continues in his Torah commentary and in his articles in Jeschurun, which were later gathered in volume three of the Collected Writings.
Source: Horeb; Uebersetzung und Erklärung des Pentateuchs; Jeschurun