by Niu-t'ou Fa-jung (594-657) (Gozu Hõyû 牛頭法融) of the Ox-head School of Chan and have speculated that the Xinxin Ming is an abridged version of the Mind Inscription.

Hsin Hsin Ming Inscribed on the Believing Mind

The Great Way is not difficult
for those who have no preferences.
When love and hate are both absent
everything becomes clear and undisguised.
Make the smallest distinction, however,
and heaven and earth are set infinitely apart.
If you wish to see the truth
then hold no opinions for or against anything.
To set up what you like against what you dislike
is the disease of the mind.
When the deep meaning of things is not understood
the mind's essential peace is disturbed to no avail.