Summary: Light exists in space and time, and it is not forcibly or artificially deprived of space and time. Still space and time are non-existent for light. What is the cause of it?
If there is an entity that exists neither in space nor in time, then space and time will be non-existent for that entity purely naturally. I am not saying that such an entity does really exist in nature. I am only showing here how space and time can be non-existent for any entity purely naturally. For no entity other than this can space and time be non-existent purely naturally. If an entity exists in space and time, and if we forcefully deprive it of space and time, then of course space and time will be non-existent for it also. But we cannot say that they are non-existent purely naturally, because we have applied force here. So the conclusion is that for any entity existing in space and time, and not forcefully or otherwise deprived of them, space and time cannot be non-existent purely naturally.
Now can we say about light that it exists neither in space nor in time? Can we say about it that it has been forcefully deprived of space and time? Can we say about any entity of this universe that it exists neither in space nor in time, that it is beyond space and time? If there is such an entity, then what is that entity? If there is any one on this earth who has any idea about its existence, then let him/her come forward and make its name public so that we can also be aware of its existence. If we find that no one is coming forward, then we will have to conclude that there is no such entity in this universe for which space and time will be non-existent purely naturally. But in spite of all these, what do we see actually? We see that space and time are non-existent for light. Yes, space and time are non-existent for light. What is an infinite distance for us is zero distance for light. Zero distance means no space. No space means space is non-existent. Similarly what is an eternity for us is zero time for light. Zero time means no time. No time means time is non-existent. Thus for light space and time do not exist, they are simply non-existent. Can one give any reason as to how space and time become non-existent for light when we know very well that they cannot be so purely naturally?
I have shown that due to only two causes space and time can be non-existent for an entity:
1) Cause A: If the entity is neither in space nor in time. This is the natural cause; and
2) Cause B: If the entity is in space and time, and if it is forcibly or artificially deprived of space and time. This is the unnatural cause.
If space and time are non-existent for light neither due to cause A nor due to cause B, then where lies its cause? Who will tell us?
Here “purely naturally” will mean not due to any outside cause.