Andras Zempleni shows how, in certain regions of Senegal, Islam superimposes a plane of subordination on the old plane of coimotation of animist values: The divine or prophetic word, written or recited, is the foundation of this universe; the transparence of the animist prayer yields to the opacity of the rigid Arab verse; speech (Ie verbe) rigidifies into formulas whose power is ensured by the truth of the Revelation and not by a symbolic or incantatory efficacy.