This book is about the theology of Jean Vanier. Drawing from Vanier's writings, it situates Vanier's theological thinking on community, care, and what it means to be and become human in the context of "welcome." This book draws attention to how welcome, for Vanier, is a visible expression of genuine hospitality, friendship, and human growth, offering an alternative way of conceiving and naming the social forming dynamics within Christian community, with special attention given to how welcome occurs within the communities of L'Arche. At a deeper level, this book assesses Vanier's thinking on the place and role both the self and community play in welcoming the truth of reality as it is revealed and given within community in order to prepare the way for exploring how welcome is a sign of community life, the visible expression of individual and communal trust in God's providence, and a conduit of God's presence in the world.