Baptism

Description
The prefiguration of baptism in the Spirit hovering over the waters, and the Eucharistic implication of accidents existing without a subject

The prefiguration of baptism in the Spirit hovering over the waters. Allegorically, the Holy Spirit is signified as brooding over the waters of baptism, bringing us to birth and regenerating us (Jerome). Nazianzen called the first light "spiritual" because it was quality without a subject -- proof against heretics who deny accidents without a subject in the Eucharist.

Chapter I (The Six Days of Creation)