Right as someone is born, there is a single instant before they take their first breath, when the macular degeneration process has not yet begun, and the true sky is visible. Of course, nobody remembers what they saw. But even through childhood, and into adulthood, this process continues, and most people see an entirely different sky at eighteen than they did at five or six. Adults see a sky that is similiar to our own, with various points of glimmering starlight, a shining sun during the day, and a phase-based moon during the night. However, most people can remember seeing strange lines connecting the stars as a child, forming faint hexagons in the sky that crackled and glimmered. Bright, iridescent lights flashed in odd patterns, and the stars appeared to shift around ever so slightly. The sun seemed to have layers it, smaller and smaller circles of differing brightness within that buzzed, and wriggled and warped about. The moon was always full. The world itself was bathed in this great cacophony of colour, and as people lost the ability to see them, the lights would become more and more faint, eventually turning invisible. Different cultures have different names for this phenomenon, but there is no record of anyone having the Sight after about twenty years of age at the maximum.
Additionally, some children can also hear a faint rumbling sound coming from a particular direction, until the age of twelve or thirteen. Some of these children run away from home in order to follow it, and they are never seen again. Attempts to follow them usually fail, and it is now seen as an auspicious, spiritual occurrence across the continent. Even any attempts at tracking the direction of this rumbling is inconsistent, as most researchers ended up with several contradicting directions.
On travelling upwards into the sky, there is a thin white fog that becomes more and more potent, eventually obscuring vision entirely. Breathing is also nearly impossible. Due to this, many of the highest peaks in the land have never been successfully scaled.
Weather is constantly changing, and unpredictable. Often, over a few short years, certain areas in the ocean turn rough and dangerous, when for many years there was only calm water. Earthquakes, volcanic activity, giant firestorms and lightstorms are common.