Which text is primarily used to derive Halachic principles regarding daily life?

The Shulchan Aruch is primarily used to derive Halachic principles regarding daily life because it is a comprehensive legal code that systematically organizes Jewish law. Authored by Rabbi Joseph Caro in the 16th century, the Shulchan Aruch consolidates various Halachic sources and traditions, making it accessible for practical application in everyday situations. Its structure allows for specific guidelines and rulings on numerous aspects of daily life, including prayer, diet, Shabbat observance, and holidays, among others.

The other texts, while significant, serve different purposes. The Mishneh Torah, written by Maimonides, is also a legal code but is more of a philosophical work that aims to explain the rationale behind Jewish laws. The Talmud, a critical body of Jewish literature, encompasses the Mishnah and Gemara, and serves more as a discussion and analysis of laws rather than a definitive legal guide for practical application. The Tanakh, which includes the Torah, Prophets, and Writings, serves as the foundational scripture of Judaism, but it is not primarily a legal text with practical Halachic rulings. Therefore, the Shulchan Aruch stands out as the main source for deriving Halachic principles utilized