THE VERY FIRST MISTAKE
Let’s travel way back in time, back before any of the story of LOST had been told. Let’s assume the island isn’t an island yet, let’s assume the island is merely an undiscovered place in a remote location on the earth, maybe like… Tunisia. Let’s further assume that the golden cave of light/time is located there. Maybe this cave of light/time is the very source of time and reality that we live in and time flows out from this point to the rest of the earth and ultimately to the rest of the universe. Think of this place as the middle of an hourglass. It’s a passage way between the past, present, and future – it’s essentially the eternal clock. The light is time, therefore it represents the future, things yet to come, things that are not tampered with by us. The future is clean untainted by things such as sin, pain, destruction, etc. To us the light represents a clean slate i.e., a Tabula Rasa.
Let’s assume that some ancient Egyptians stumble across this light (which is actually the flow of time). And let’s assume that these ancient Egyptians discover that by manipulating the flow of the light/time they manipulate time itself, maybe like if you placed a small cork in the middle of an hourglass it would let less sand flow through the hourglass giving the illusion that time was slowing, but in the case of the golden cave of light the clock is real and any blockage in the flow actually does in fact affect the passage of time. Obviously this would be an advantageous discovery. After all, if you can manipulate time you could gain power, wealth, and possibly eternal life apart from God’s help i.e., by jumping back in time over and over again you could theoretically live forever!
The Egyptians partially blocked and channeled the light (i.e., time) and began to manipulate it. In fact it appears that the Egyptians installed some sort of valve device that could alter the flow of time, depending on how the cork was placed in the device time could be slowed, sped up, or even regulated to flow normally (as it was in the end of the End). The instant that the Egyptians manipulated time there was two serious side-effects. First, the past, was no longer just a memory. The past became an actual entity because now the past exists in more than just the mind, now the past actually exists in the real world because by manipulating time you are not allowing the past to be “let go” (by creating the ability to travel back to it). Ultimately the entire message of the show LOST was our struggle to let go of the past and not be consumed by it, yet LOST took this concept a step further and designed the show around our character’s battling their pasts in a very real way. In LOST the flash backs of our characters not only told the back story but also helped to define the monster which was a combination of all of their pasts and others that had come before them
Thus, the birth of the smoke monster was a side effect of the very first manipulation of time.