Ok so I'm new to this whole Forum thing so go easy please.
I was browsing the internet and stumbled upon a video talking about the Mount Chiliad mystery. The link to the video is below. Please watch the video before you continue to read this post then you will have a better look on what I'm about to tell you.
Okay so assuming you did as I asked and watched the video, you will see that the mountain outline is more or less identical to the glyph.
Now if you take a look at the glyph and you assume that the video above is correct, and the glyph matches the mountain perfectly, you might wonder what the other symbols mean. The egg, the spaceship, and the jetpack.
I was wondering that myself so I dived on GTA and searched, for what the symbols could mean (egg, spaceship and jetpack) and I think I found the answers.
In the video, the character is standing on the stone table, were they sacrifice people, take there life. The Egg could represent life, the birth of life, being the hatching egg that you see on the glyph.. And the Stone table being the place to take a life. So lets say that the egg isn't an object you can pick up, or a prize that some people say it could be, but lets say its a place for life, the birth and death of life. That being the Stone sacrificing table.
Now for the spaceship. The space ship is, on the glyph, positioned to the left of the egg. If you go onto your GTA game and stand on the stone table and look to your left, you see Mount Chiliad. Now if you don't know the mountain has a secret Hologram of a ufo. Its a hologram for a reason, that reason being unknown, maybe Rockstar wanted to mess with your head so to make you think the easter egg is on mount chiliad, and they positioned the glyph on mount chiliad to confuse you...
So again the spaceship on top of Mount Chiliad represents the space ship on the glyph, and the egg, represents life, the stone alter. Now for the jetpack.
If you again go onto GTA and stand on the stone table and look to your right (as the jetpack in the glyph is on the right of the egg) and then you press start and bring your map up, you will be facing directly at Fort Zancudo. The protected military base. Maybe the jetpack is located under Fort Zancudo down the mysterious elevator?
Now keeping all that in mind, again if you bring up your map from the pause menu, you will notice that there is a long highway that travels from Fort Zancudo and can lead to Mount Chiliad. It leads to the cable car then to the top of the mountain. Now, on the glyph you see a line connecting the spaceship and the jetpack together but not the egg, and if you look closely the highway connects Fort Zancudo, were the jetpack could be, Past the Altruist camp were the Stone table/egg is and connects to the Mountain.
You have your glyph.
The stone table = the egg.
Fort Zancudo = a secret jetpack
Mount Chiliad = The UFO.
The line on the glyph connects the jetpack and the spaceship the same way the highway connects the Fort and The mountain.
The video you see above isn't by me so I don't take credit for it, but all the information you see above was found by me, I believe.
I know this I a long post but if you read it all then please
tell me below what you guys think of my theory.