pervade

This verb describes a saturation that is total and inescapable, often evoking a sense of an invisible force or atmosphere filling a space. It is frequently used to describe scents, moods, or ideological influences that seep into every corner of an environment, leaving no part untouched.

In literary or critical analysis, the word shifts from physical space to conceptual space. It describes a recurring motif or a persistent emotional tone that defines a piece of art or a historical era, suggesting a cohesive, underlying presence rather than a sporadic occurrence.