What one thinks, the other will experience with him. What can this mean except your mind and your brother’s are one? Look not with fear upon this happy fact, and think not that it lays a heavy burden on you. For when you have accepted it with gladness, you will realize that your relationship is a reflection of the union of the Creator and His Son. From loving minds there is no separation. And every thought in one brings gladness to the other because they are the same. Joy is unlimited, because each shining thought of love extends its being and creates more of itself. There is no difference anywhere in it, for every thought is like itself.

The light that joins you and your brother shines throughout the universe, and because it joins you and him, so it makes you and him one with your Creator. And in Him is all creation joined. Would you regret you cannot fear alone, when your relationship can also teach the power of love is there, which makes all fear impossible? Do not attempt to keep a little of the ego with this gift. For it was given you to be used, and not obscured. What teaches you that you cannot separate denies the ego. Let truth decide if you and your brother be different or the same, and teach you which is true.

- Jesus Christ in A Course in Miracles, Chapter 22-VI, 23-Intro