首楞嚴義疏注經 9.230

9.230

「又以此心圓入虛融，四體忽然同於草木，火燒刀斫曾無所覺。又則火光不能燒爇，縱割其肉猶如削木。此名塵併，排四大性一向入純。暫得如是，非為聖證。不作聖心名善境界，若作聖解即受群邪。」

"Further, as this mind enters completely into empty blending, his four limbs suddenly become like grass and trees, having no sensation even when burned by fire or hacked by knives. Furthermore, the glow of fire cannot burn or scorch him, and even if his flesh is cut, it is just like paring wood. This is called the dusts merging, displacing the nature of the four great elements, and entering single-mindedly into purity. It is an experience attained temporarily and is not a noble realization. If he does not generate a notion of holiness, it is called a wholesome state; but if he adopts an interpretation of holiness, he will succumb to a host of demons."