"Awareness seems very close to consciousness in that it holds sense experience, but perhaps there is also mindfulness since it seems somewhat intelligent.

Consciousness in this usage means the knowing of an individual sense object: sight, sound, and so forth.

Awareness is not quite locatable. It is not an object that can be taken hold of; awareness is what holds objects.

Awareness is the activity of knowing; mind is the thing that does the knowing."

Emptiness: a practical guide for meditators