Do not cling but go farther

You have a guide for a part of the way but when you have travelled this part leave the road and the guide and go farther!
This is something men find difficult to do. When they get hold of something which helps them, they cling to it, they do not want to move any more. Those who have progressed with the help of Christianity do not want to give it up and they carry it on their shoulders; those who have progressed with the help of Buddhism do not want to leave it and they carry it on their shoulders, and so this hampers the advance and you are indefinitely delayed.
Once you have passed the stage, let it drop, let it go! Go farther.

Ref: Questions and Answers 1957-1958