Attention is the vital thing and there is no tension in attention. It just happens to be a similar word. It's not concentration or straining. Attention has the openness of a young child not yet dominated by the conceptual mind.
Eckhart TolleOnce there is a certain degree of Presence, of still and alert attention in human beings' perceptions, they can sense the divine life essence, the one indwelling consciousness or spirit in every creature, every life-form, recognize it as one with their own essence and so love it as themselves. Until this happens, however, most humans see only the outer forms, unaware of the inner essence, just as they are unaware of their own essence and identify only with their own physical and psychological form.
Eckhart Tolle