Our ancients spent centuries to become aware of one thing clear as the sky, despite being under the eyes of all. Above.
Hipparchus of Nicea in 120 BC succeeded in measuring with incredible accuracy the distance of the Moon from the Earth. To do this he used the shadow that Earth projects on the Moon during eclipses, using not many other instruments more than observation. Not even photography, of course.
It is very difficult to be aware of reality when the observation point is inner.
The story of Hipparchus is paired with the one of fishes narrated by David Foster Wallace
There are these two young fish swimming along, and they happen to meet an older fish swimming the other way, who nods at them and says, "Morning, boys, how's the water?" And the two young fish swim on for a bit, and then eventually one of them looks over at the other and goes, "What the hell is water?"
Dear signs of any sign, the coming years are the right time, or better is the only one available to you, to understand a little more about your existence. To do this you do not need great tools, but great observation skills.