Quote from A Course in Miracles Text Chapter 30 - THE NEW BEGINNING.

T-30.III.3. Behind the search for every idol lies the yearning for completion. 2 Wholeness has no form because it is unlimited. 3 To seek a special person or a thing to add to you to make yourself complete, can only mean that you believe some form is missing. 4 And by finding this, you will achieve completion in a form you like. 5 This is the purpose of an idol; that you will not look beyond it, to the source of the belief that you are incomplete. 6 Only if you had sinned could this be so. 7 For sin is the idea you are alone and separated off from what is whole. 8 And thus it would be necessary for the search for wholeness to be made beyond the boundaries of limits on yourself.