The question arises at this juncture as to the actual
existence of this afterworld to which he is destined.
In what way can it be apprehended? In what way
can it be made intelligible to us?
Take sound, for instance. Everyone knows that
sound is the name of waves which cannot be seen
with the naked eye, and in the case of human
utterance, resulting from the motion of our tongues
and larynxes. It then forms a kind of invisible
pattern in the air. Whenever anybody speaks, his
voice is so indelibly imprinted on the atmosphere
that, according to scientific theory, any sound
uttered by a human-being even thousands of years
ago, still exists in wave-form, though we do not
hear or see these waves. If, however, we possessed
the apparatus to detect them, they could be
replayed exactly, in their original form, and many
would be the historic discussion upon which we
could then eavesdrop.
Just as we are enveloped by a blanket of air on
which, every word of ours is engraved, even though
we see neither the air nor the inscription, so the
other world is also enveloping us on all four sides
and constantly recording our intentions and
designs. Our actions are being imprinted upon its
fold, and after death, they will be there for all to
read. Imagine a record revolving mutely on its
turntable. As soon as the needle falls into its groove,
the silent disc bursts into music as if it had just been
waiting to express the sounds recorded on it. In the
same way a record of all our deeds is being
prepared, and when the Lord of the Universe utters
the word of command, the whole record will be
played back to us. On hearing it people will
involuntarily say, “What sort of a book is this which
has omitted neither the smallest nor the gravest of
matters?” (The Quran)
Ref - Man Know Thyself
- by Maulana Wahiduddin Khan