Sleep

O Son of Man! Many a day hath passed over thee whilst thou hast busied thyself with thy fancies and idle imaginings. How long art thou to slumber on thy bed? Lift up thy head from slumber, for the Sun hath risen to the zenith, haply it may shine upon thee with the light of beauty.

Bahá’u’lláh, Hidden Words, Arabic 62

O Son of Man! Ponder and reflect. Is it thy wish to die upon thy bed, or to shed thy life-blood on the dust, a martyr in My path, and so become the manifestation of My command and the revealer of My light in the highest paradise? Judge thou aright, O servant!

Bahá’u’lláh, Hidden Words, Arabic 46

. . . Our body is like the cage, and the spirit is like the bird. We see that without the cage this bird flies in the world of sleep; therefore, if the cage becomes broken, the bird will continue to exist: its feelings will be even more powerful, its perception greater, and its happiness increased. In truth, from hell it reaches a paradise of delights, because for the thankful birds there is no paradise greater than freedom from the cage.

‘Abdu’l-Bahá, Bahá’í World Faith, p. 327

Consider man while in the state of sleep; it is evident that all his parts and members are at a standstill, are functionless. His eye does not see, his ear does not hear, his feet and hands are motionless; but, nevertheless, he does see in the world of dreams, he does hear, he speaks, he walks, he may even fly in an airplane. Therefore, it becomes evident that though the body be dead, yet the spirit is alive and permanent. Nay, the perceptions may be keener when man's body is asleep, the flight may be higher, the hearing may be more acute; all the functions are there, and yet the body is at a standstill. Hence, it is proof that there is a spirit in the man, and in this spirit there is no distinction as to whether the body be asleep or absolutely dead and dependent.

‘Abdu’l-Bahá, The Promulgation of Universal Peace, p. 242

In the time of sleep this body is as though dead; it does not see nor hear; it does not feel; it has no consciousness, no perception—that is to say, the powers of man have become inactive, but the spirit lives and subsists. Nay, its penetration is increased, its flight is higher, and its intelligence is greater.

‘Abdu’l-Bahá, Some Answered Questions, pp. 227-228

Must forget his own selfish conditions that he may thus arise to the station of sacrifice. It should be to such a degree that if he sleep, it should not be for pleasure, but to rest the body in order to do better, to speak better, to explain more beautifully, to serve the servants of God and to prove the truths. When he remains awake, he should seek to be attentive, serve the Cause of God and sacrifice his own stations for those of God. When he attains to this station, the confirmations of the Holy Spirit will surely reach him, and man with this power can withstand all who inhabit the earth.

‘Abdu’l-Bahá, Bahá’í World Faith, p. 384