Some Ans. Questions 2014 by -'Abdu'l-Bahá- 1 Para

While asleep, this physical body is as dead: It neither sees, nor hears, nor feels, and it has neither consciousness nor perception- its powers are suspended. Yet the spirit is not only alive and enduring but also exerts a greater influence, soars to loftier heights, and possesses a deeper understanding. To hold that the spirit is annihilated upon the death of the body is to imagine that a bird imprisoned in a cage would perish if the cage were to be broken, though the bird has nothing to fear from the breaking of the cage. This body is even as the cage and the spirit is like the bird: We observe that this bird, unencumbered by its cage, soars freely in the world of sleep. Therefore, should the cage be broken, the bird would not only continue to exist but its senses would be heightened, its perception would be expanded, and its joy would grow more intense. In reality, it would be leaving a place of torment for a delightsome paradise; for there is no greater paradise for the grateful birds than to be freed from their cage. So it is that the martyrs hasten to the field of sacrifice with the utmost joy and elation (61:3)

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