Don't get attached to any one word. You can substitute "Christ" for presence, if that is more meaningful to you. Christ is your God-essence or the Self, as it is sometimes called in the East. The only difference between Christ and presence is that Christ refers to your indwelling divinity regardless of whether you are conscious of it or not, whereas presence means your awakened divinity or God-essence.

Eckhart Tolle

from The Power of Now: A Guide to Spiritual Enlightenment