إنّ لِلجِسمِ سِتَّةَ أحوالٍ: الصِّحّةُ، و المَرضُ، و المَوتُ، و الحَياةُ، و النَّومُ، و اليَقَظَةُ، و كذلكَ الرُّوحُ، فحياتُها عِلمُها، و مَوتُها جَهلُها، و مَرَضُها شَكُّها، و صِحَّتُها يَقِينُها، و نَومُها غَفلَتُها، و يَقَظَتُها حِفظُها.
								 Imam Ali (as):
								The body experiences six different states: health, sickness, death, life, sleep and wakefulness, and so does the spirit. Its life is its knowledge and its death ignorance; its sickness is doubt whereas its health is certainty; its sleep is its negligence and its wakefulness is its consciousness.  
							
							
							
									Source:
											
												Sheikh Ṣadūq
												Vol al-Towḥīd
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