This sentence means that you should not use bizarre and unfounded speculations to guess at things that are difficult to understand.,“He was in a coma. The imperial physician said it was blood stasis, with blood vessels in the brain clogged and stagnant. He had woken up for a while, but after regaining consciousness, he found himself blind. Terrified, he fainted again quickly. It is likely that this was caused by the blockage of blood vessels.”,It's possible to have once seen the light, only to fall into endless darkness. For someone with a fragile psyche, that kind of experience might drive them to consider suicide.。