註華嚴經題法界觀門頌 2.191

2.191

Mistaking south for north might still be pardoned; / Digging the earth to seek the sky is even more pitiful. This gāthā praises how ordinary people attached to marks fail to realize that marks are precisely markless; they broadly set up marks and seek the truth outside marks. How is this different from a confused person mistaking south for north, whose confused sentiments are hard to dispel? Furthermore, it is like digging the earth to look for the sky—on what day could it ever correspond? It is far, so very far! Hence the Buddha said: 'The doubly confused among the confused are truly to be pitied.'