Unbelief is an Infinite Destruction
However insignificant the part of the free will seems in man’s actions, and however slight a sin unbelief may seem to some at first sight, it is a denial and negation and therefore destructive, and deserving eternal punishment.
Remember that we likened the part of the free will in man’s actions to turning on or off the switch to illuminate or darken a room. So, by turning off a switch you can reduce a whole city to darkness. To cite other examples, by lighting a match you may burn to ashes in a few minutes a huge, magnificent palace which hundreds of workers constructed over several years. Remember that it was a single bullet fired by a Serbian, which ignited the fire of the First World War, and led to millions of lives lost and massive destruction.
Also, suppose there is a garden with flowers and trees of all kinds on the branches of which birds sing, and in which all kinds of animals live. All those plants and animals subsist on the water reaching them through canals, and a person is in charge of irrigating the garden by letting the water flow to the canals from a big reservoir. What kind of sentence do you think would be appropriate if this person were to let the garden with all the plants and animals therein die of thirst by simply turning off the flow of water? The act of unbelief is equivalent to such an act but on the scale of the creation as a whole.
By Bediuzzaman Said Nursi