In the town of Odienné, Madou forges his faith in God by performing long sessions of solo zikr after midnight. This article ethnographically explores the theme of light in this Sufi practice of concentration as an experiential form of being. It first describes how the light and darkness of the penumbra of the night co-initiate what I call “the devotional place” of zikr. Following a phenomenological writing, it then describes how, as hours go by, Madou’s concentration navigates towards “yeelen” through (...) the silence of the deep night. In doing so, this article elaborates the “corporeal mind” as synesthetic instants in this journey when the body becomes the mind and the mind faith, as the penumbra becomes silence and silence light. In other words, it explores the sensuous unboundedness of the self that happens in regular and long practice of nocturnal solo zikr. This article therefore offers a corporeal understanding of the light of God among practitioners of prolonged nocturnal solo zikr in West Africa. (shrink)