If you take into account the course of modern human history--when we began writing down our emotions on homemade parchments and animal hides--you might discover that our particular race of creatures agree on one notion: Life doesn't end at death. If you consider the event we call death, and we all have, the course of human history declares loudly that life continues beyond this mortal state, that our Dead move from this sphere of existence into a new, as yet unseen, realm.
This story of life after death is far from consistent, as it is scattered across innumerable cultures, carved and inked in dozens of languages, played out in countless verses and prose over the millennia, attached to varied mythos of deities and demi-gods. This alone is evidence that humans know in their hearts that our own lives cannot simply evaporate away when the life in our eyes dims for the last time. It's impossible, we deduce. It can't be. Unfathomable.
The concept that our emotions--the accumulation of our loves, our hate, our joy, our anger, our knowledge, our wisdom and experience--simply closeout for all time and eternity doesn't ring true. Even if we have beef with organized religion, even if we revile the cult of fear created by the sludge of tele-poli-vangelists and the depraved slaughter unleashed by mullahfascists (all in the name of some believed god), squared away in the back of our minds, under lock and key, we know that our consciousness, the sum total of Life, can't flame out like a match and decompose in the ground after they bury us. Less formally: it's just not fair.
Why is this? Why do we have this compulsion to cling to the idea that our lives can't end when our bodies finally die?
One possible reason is fear. It is a motivator. Just ask your tele-poli-vangelists and your mullahfascists about the fear factor. (I could name names but I'd rather not get too pointed here...) However, when you take into account the immense weight of evidence produced by human contemplation, the sum total would indicate far more faith than fear is produced. A reason for this: we haven't slaughtered ourselves into extinction, as so many science fiction writers have imagined. We want to live, and not simply live but produce a higher quality of life. Our curiosity about Life is intergalactic, literally extending beyond this atmosphere into the depths of the sea and the mind-bending distances from our planet. How could that accumulative knowledge--just the desire alone--altogether vanish from the spectrum of multidimensional physics?
Seems such an idea would be a crime against nature, a violation of physics. If nothing else, recent discoveries of subatomic particles illuminate the possibility of unseen matter. Go ask the good folks at CERN who are smashing protons together at near light speeds at the Hadron Collider, trying to capture those infinitesimal bits. What of Dark Matter? Unseen, directly undetectable, Dark Matter is only theorized because of various gravitational factors in the cosmic layout of within galaxies. Something is out there, binding the universe together, where otherwise the universe shouldn't exist.
All of this, the vast cosmic picture of the seen, funnels inward down to the unseen. Such theoretical physics embraced by the scientific community shouldn't be dismissed as a possible gateway into learning the true nature of the unseen world, which most humans regard as "the spiritual". And yet many people will be easily dismissive of such notions because the very idea of giving credence to religion cuts against the grain of logic, as it is associated with the pantheon of tele-poli-vangelists and mullahfascists and their cult of fear. (They search for truth with swords and cut their own throats...)
When death takes us, when our bodies cease to function, we will continue on into the great unseen. We know that Life continues beyond this realm because the truth speaks to us, to our souls. You're either in tune with your soul, the unseen portion of the cosmos, or you're not.