" The Bible says that you should go with a brother twice as far as he asks. It certainly does not suggest that you set him back on his journey.
Devotion to a brother cannot set you back either.
It can lead only to mutual progress. The result of genuine devotion is inspiration, a word which
properly understood is the opposite of fatigue. To be fatigued is to be dis-spirited, but to be inspired is to be in the spirit. To be egocentric is to be disspirited, but to be Self-centered in the right sense is to be inspired or in spirit. The truly inspired are enlightened and cannot abide in darkness.
T-4.in.2. You can speak from the spirit or from
the ego, as you choose. If you speak from spirit
you have chosen to “Be still and know that I am
God.” These words are inspired because they reflect knowledge. If you speak from the ego you are disclaiming knowledge instead of affirming it, and are thus dis-spiriting yourself. Do not embark on useless journeys, because they are indeed in vain. The ego may desire them, but spirit cannot embark on them because it is forever unwilling to depart from its Foundation. "

― , A course in miracles: Text, Vol. 1