glow

The state of a glowing object.

The condition of being passionate or having warm feelings.

The brilliance or warmth of color in an environment or on a person (especially one's face).

"He had a bright red glow on his face."

To give off light from heat or to emit light as if heated.

"The fire was still glowing after ten hours."

To radiate some emotional quality like light.

"The zealots glowed with religious fervor."

To gaze especially passionately at something.