When may someone enter a synagogue only to take a shortcut, escape the rain, or meet another person?

This Torah study examines the question: When may someone enter a synagogue only to take a shortcut, escape the rain, or meet another person? The canonical Hebrew discussion develops the issue through the weekly Torah portion and the sources cited there, preserving the distinctions, tensions and practical implications that belong to the source itself. This localized layer is designed for study and discovery; it does not add a new halakhic, medical, legal, historical or empirical ruling beyond the canonical Hebrew source.