Here is the image for just Day 4 so you can read it better.

And the text:

Even the largest body lets itself be pushed where it
needs to be, seduced into nice, warm loving orbits.
Persistence is the key.

Seafloors transform and then yank themselves
skyward, shattering the icy crust as new worlds
awaken inside the swirling depths.

You build homes of ocean laid over stone; giant
and tiny, surrounding this half-born sun ripped by
storms and supersonic wind.

You deliver your last orders to an army that needs
nothing anymore---not instruction, courage or
even prayers---and then you hide again.

In ecstasy they search you, finding nothing but
dense quiet dropping from the stars.

Man every day makes me more excited. Really happy about how much i DON'T know, lol.

Grim

In this one's text I imagine that entire planets are being… formed… from the depths of gas giants? In the second part we again have the theme of whoever we're talking about doing something then (intentionally?) hiding / vanishing.

The part about the army seems odd. Maybe these terraformers / planetary creators (/destoryers… it kinda implied that someone created AND THEN later destroyed Mercury) are fighting a war against a somehow superior foe (how it can be superior to someone who can create and destroy planets and vanish is intriguing) and would be easily destroyed if the enemy (or good guys?) ever manage to pin them down?

Man I love this return to unbiased, unhindered, unbaggaged rampant speculation! :)

This has probably been mentioned before, but I'm thinking these messages each correspond to a faction, presumably since each faction is headquartered on a planet? The names of the three Bungie Day shirts seem like they relate to planets:

Dead Orbit - Mercury
(edit: the shirt graphic might also suggest the Moon, but I feel like since this is the future the Moon is probably healthily colonized and not "dead")
New Monarchy - Jupiter
Future War Cult - Mars

The "armies" mentioned in the messages might correspond to the factions headquartered on each planet. Dunno about the dramatic imagery in the messages, and the references to "you." Maybe the "you" is supposed to refer to that big sphere hovering above Earth, or some related entity. The references to "you" creating and guiding armies would have some precedence in Bungie lore, involving some ancient, foreign entity tipping over the first domino that led to the current state of humanity.

Second edit: WestCoastRonin's post has some messages from Bungie which I think are also relevant to the factions/their planets

[...]
[...]
3. Make the City safe again.
4. Together we will take back all that we have lost.
5. Hope shines brightest in the dark.
[...]
7. Only the trusted few…

The most obvious connection is 7, which refers to the "trusted few." The same phrase is used in the puzzle image whose symbol relates to the Moon. "Trusted few" sounds like it might refer to the organizational structure of whatever faction belongs to the Moon, similar to the Prophets in Halo.

If 7 refers to the first released image, then it might make sense to work backward.

5 would be the third released image, then, which corresponds to Mercury. "Hope shines brightest in the dark." Doesn't make much sense at first since Mercury is, presumably, a very bright place due to its proximity to the Sun. I can only think of two possible rationalizations:

(1) Whatever faction is on Mercury is actually based in orbit around Mercury at its L2 Lagrange Point, thus always keeping it in Mercury's shadow and, thus, in the dark. Seems like that'd be the only consistently hospitable area around there.

(2) The quote doesn't mean much and its purpose is just to draw contrast -- "Hope shines brightest in the dark." This would be in keeping with the theme of the message in Mercury's leaked image, which involves contrast, and begins with "One face is blistered, the other plunged into a brutal chill" and goes onto include various other dichotomies.

4 is anyone's guess. If the pattern holds up, it refers to the fourth leaked image which corresponds to Jupiter. The message makes a couple of relevant references, first to "hid[ing]," then to "search[ing]" and "finding nothing." Sounds like it might be related to "taking back what was lost," but what exactly was lost is anyone's guess at this point.

I haven't really been following this until just now, and I have to say: this gets me really fucking excited and interested.

Seriously, I'm amped for Sunday.

So, this has probably been painfully obvious for almost everyone here, but it's something I just noticed this morning. I pulled up all the solutions thus far and noticed that each passage is sitting beside each geomancy. And these geomancies are also shown at positions relative to each other and appear to mark the planet/celestial body position on the same star chart. This furthers a belief that I have that each passage is relevant to the body it sits beside (again, y'all probably knew this from day one so please forgive my ignorance). Now whether the passage belongs to the natives of said body or from The Traveler's experiences there, I'm not sure. I just found that both telling and interesting and maybe it's something that other people have overlooked as well.

Now, on to my question(s). What does the relative position of each body mean?. I'm not an astrologist by any means nor do I even have a decent grasp of space, but, I do know that you can use the position of stars, planets, etc. to either date events or possibly predict them. Looking at the position of these bodies, does that point to any historical event or predicted event that we know of? Perhaps that might hold a few clues?

- CC An intrigued but decidedly ignorant follower of Destiny.

Jupiter has been transformed into a "half-born sun" to warm Europa for habitation. This is indicated by the sun being "ripped by storms and supersonic winds." This is certainly referring to an event in the future because it mentions the seafloors rising and "shattering the icy crust".

I think the armies quote refers to the automatons used to nudge Jupiter into a warmer orbit. They need nothing after their purpose has concluded. Or perhaps the army is the life that is blossoming on Europa.

As for the reference to them searching for you, it's either referring to the automatons (who may have developed awareness past their originally intended purpose), or to us, searching out our creators (the "you" continually referred to), or to the life that developed on Europa doing the same.

So here's what I'm brought to... if the "you" is the Traveler, then who is speaking to the Traveler?