Interpretations of St. Teresa's cultural heritage have taken various forms over time, from the analysis of its historical and religious value, to its undoubted status in the industry of objects and relics. However, in this article we propose to review another part of his legacy, reflected in his challenging epistolary, corporal and pedagogical authority, and to endow it with value, while these three spaces, the communicative, the intimate and the communitarian, were part of the elaboration of his own model of holiness and of his inexhaustible and effective cultural and formative program.