The vibration from the air molecules ('sound') and the light which has bounced off external objects ('incoming' sight!) are 'transformed' into these electric signals by our Organ of Corti and our rods and cones respectively, and then 'sent along' to the brain.  What our 'grey matter' actually receives, then, is only a TRANSLATION (or for you I.T. folks, a MODULATION) of sound waves and light particles/waves.  It's like my cells hear the symphony, or read the letter, first and later proceed to inform my brain of their 'findings'.  Thus, your visual cortex isn't really 'seeing' the screen now, but simply a 'replica' of it, the image having been reconstructed from what your cells originally received.

In the case of the ear, the Corti tool modulates the data from SOUND to ELECTRIC SIGNALS (i.e. all real sound stops there!) and fires these off to the auditory department in our brain to be demodulated into 'hearing'.  Our eye cells, similarly, have the rods and cones (all 127 million of them) receiving the light-messages, translating these into electrons(!!!), and the optic nerve transporting them to the visual cortex.  Here, thousands of cells are programmed to recognize 'scenes' of incredibly specific detail; sorta like one cell per 'frame' of eyesight that enters the brain.

These phenomenal internal m.o.d.e.m.s' built inside us should leave us in awe and make us reconsider any notion that this was all 'by chance'  - and there ain't no amount of 'process reengineering' which is gonna improve the equipment we've been bestowed with, haha!

And then we have our white blood cells.

These are the palace guards or elite troops inside our bloodstream patrolling the area, making sure there ain't no perpetrators roving around wrecking havoc.  Under the microscope they remind us of 3rd-grade soldiers lazing around, floating up and down, 'lepak'-ing here and there, seemingly having no direction or purpose in their intra-body existence.

Until the battle begins.

Let's say some bacteria dude finds its way inside the body (through a cut or perhaps something we ate or inhaled) and innocently wants to do what it does best - propagate.  At the INSTANT this foreign invader steps in, the white cells nearest the infiltration area (they're not given fixed sectors to be responsible for, unlike many management consultants), come alive to action almost as if they've been possessed by killer demons.  (Imagine some balloon-like elements moving around aimlessly until all of a sudden they acquire a powerful collective focus on a common enemy, and then like hordes of ID4 alien ships DASH to the battle zone - that'll be what it looks like).  And it's not quite known how our white cells 'realize' that invaders have entered forbidden territory (except perhaps through the interface - or middleware? or API? - resulting from the DNA protocol in each and every one of our body cells, which is itself a wondrous phenomena).

Anyway, what happens when our brave knights reach the scene?  Too bad for the bacteria our white cells ain't gonna tell them, "You've got 10 seconds to get the hell outta here before we blow you the hell up".

They just blow them the hell up.  No negotiation.

Our storm-troopers will first 'circle the wagons', moving in closer and closer to the bad guys before enveloping the aliens like a huge blob-monster covering a victim (and for a while we would still see the bacteria glowing 'inside' the army of white cells in which it's trapped).  Our heroes will then detonate the dynamite sticks carried around in their granules, performing what is often a kamikaze or  suicide-bomber act i.e. many white cells will lose their lives in the process of disarming a threat to the body.  Game - Set - Match.  White Cell Squadron.

We have 50 billion of these micro-marines actively on duty inside us, loyally defending us from enemies a billionth of our size.  And the reserve army, kept in our bone marrows, is a hundred times
bigger - talk about 'back-up', man!  So next time you ain't feeling too well physically, remember that you've been given a super-efficient force of commandoes who works round-the-clock for you, sacrificing themselves willingly and 'full-heartedly'.  And then you can ask yourself, "Are they a fluke shot of nature or were they recruited on purpose?".

(It becomes a great tragedy when our white blood cells perform mutiny and think only of their own growth in numbers at the expense of the rest of the body.  The condition, thankfully rare, is called leukemia.)
 

AL