In this paper, I will present what I believe to be the first English translation of the renowned text La vraie prière de l'Eglise, delivered by Dom Lambert Beauduin in 1909 in Malines. This seminal text is widely regarded as the inception of the 20th-century Liturgical Movement. Beauduin outlines the principles and conditions for liturgical and ecclesial renewal at the dawn of the 20th century in this brief work. First of all, I will situate and evaluate the relevance of this specific moment and its contribution to the Roman Catholic intellectual tradition. Secondly, over a century later, and following an ecumenical council, I will reflect on the status quaestionis of Beauduin's analysis and consequent proposals made in this short presentation, examining their impact and lasting relevance on the subsequent century.