#basically rauru is what improved hylia's seal to the point that botw zel uses it with as much strength as she does

[powdermelonkeg]

so, it’s confirmed that Zelda’s “Time” powers came from Sonia, and her “Light” powers from Rauru, but we know from other games that only the women of the royal family can use the “sealing” power inherited from SkSw Zelda. do you think this means that throughout history, the “Light” powers associated w the sealing are actually separate from the sealing ability? I just remember being really lost after that cutscene, cause even if Rauru somehow was a descendant of Hylia, he wouldn’t be able to use those powers, and the sealing of whatever evil is causing trouble always has a fancy light show with it lmao

So, this is a very complicated question with a very complicated theory to answer it.

We know that Sonia's primary, and, in terms of usablity, only power is Recall.

However, I do believe she's Hylia's descendant, not Rauru, despite Rauru being the one with the light/sealing power. Evidence on that here.

Being Hylia's descendant would make Sonia's birthright be a whole host of other powers, possibly latent, but more probably something that Sonia's never actually been in the right situation to use. Let's take a look at what Skyward Sword Zelda can do.

She can seal the Demon King-

-but only at the expense of her own life force being rendered inert while she does.

She can bless the Master Sword-

-but it's already as strong as it can get.

She has strong connections to time...

...but we knew that already.

Of these three powers, only one would be relevant to Sonia's skill set. The Master Sword can hardly be doubly-blessed, and the Demon King has yet to show his face.

More importantly, however, Skyward Zel's sealing power works MUCH differently to Wild Zel's.

Wild Zel's sealing is instantaneous, fueled by emotion, with seemingly no draining effect on her person.

When fully unleashed, her seal is as total as it is inescapable. It doesn't require her to put herself to sleep until Link can deal the final blow with the Master Sword. The closest thing to Skyward Zel's seal that Wild Zel did was in keeping the Calamity at bay for 100 years while Link slept. During which, it's heavily implied that she was conscious, given that she spoke to Link the instant he woke.

With Rauru, his sealing ability seems much more similar to our princess's, with only some key differences visually.

His right hand gathers light around it, and needs to be extended to fully function.

When the seal first activates, it forms a spherical shape, which is inescapable, albeit on a much smaller scale than Zelda's.

It's a little hard to see, due to the magnitude of Zelda's power, but it IS a sphere.

And although this act does cost Rauru his life, it usually doesn't. He's done this before, multiple times, as stated in Messages from an Ancient Era tablet A Pilgrimage of Light:

"The kyng was late y-come this aven, so maked the quene to sharen tales of hir lond, of shirines al grene yglouen. "Of erli daies sinnes Hyrules funding have diverse monstres hir reaume biseged ond assaylled. "Uncesinge in striffe, thei broughte to despeir folkes lyfen. Kyng ond quen ysete thamselue to bringen scurge to ende. "With might of light ond pouere, driven abak ybeen, ond the roial couple made thes shirines to selen him awei. "Thes holi selen ben yclept Shirines of Light. "Gret kyng, grete quen, y thank ye. Ye foughte whan y wer maiden-child, that y kude pes toknouen."

The translation, to the best of my efforts:

"The king was late to come this evening, so made the queen to share tales of her land, of shrines all green glowing. "Of early days since Hyrule's founding have diverse monsters her realm besieged and assailed. "Unceasing in strife, they brought to despair folks' lives. King and queen set themselves to bringing scourge to end. "With might of light and power, driven aback they been, and the royal couple made these shrines to seal him away. "These holy seals been called Shrines of Light. "Great king, great queen, I thank you. You fought when you were maiden-child, that I could peace to know."

Sonia and Rauru went around making the Shrines of Light that we find in present day and receive blessing from:

So, with the exception of the Demon King, who was so powerful that he could resurrect thousands of years later, Rauru's seal behaved like Zelda's—instant, fueled by emotion, inescapable, projected by the right hand, with no immediate toll on the user.

But what does this mean for Zelda's sealing ability? Despite behaving similarly, it doesn't look similar at all.

Let's look back at what happens when Sonia and Rauru combine their powers.

Rauru brings his hands together in a triangle shape, possibly invoking the same Triforce motif Zelda gives when she unleashes her power. The Secret Stone, which magnifies his light abilities, glows in a similar shade to Zelda's seal.

Sonia extends her right hand as her own tear glows. Despite it only amplifying her time power, her hand shows the same color Rauru's light gives off—as well as being in a spherical form.

Rauru draws in her power (and Zelda's, whose is a combination of both already and therefore adds no new properties) and forms a bright yellow light with a sphere around it.

It's better seen from this angle, where we can also see what looks like an inverted Triforce in the middle.

They're nowhere near the level of focus Zelda's Triforce has, but the triangles are definitely there.

And then it becomes a catastrophic force of power, able to wipe out an entire swarm of Molduga in a single hit.

Zelda's lineage's sealing ability is a culmination of all of this. It's Sonia and Rauru's powers combined, taking Hylia's seal, the Goddess's full power-

-and attaching that strength to something instantaneous and geared specifically to lock away darkness-

-by combining the power of time with the power of light.

Hylia's sealing power isn't Rauru's, but Zelda's is Hylia's AND Rauru's combined.

As a side note, this is also why I think, despite Rauru contributing his power, the magic remains only matrilineal. Hylia's descendants—meaning in this case, Sonia—are the only ones that carry her abilities. Rauru's power attached itself to Sonia's to create Zelda's, but Sonia's abilities—with or without Rauru's boost to them—can only be accessed by her daughters and granddaughters.

Strong enough to rival any magic in the world in sheer might, this later became known as the Light Force.

TLDR: Hylia's seal = Slow, nonlethal, exhausting toll, powerful, golden lightshow Rauru's seal = Fast, potentially lethal, concentrated, opposes Ganon, spherical lightshow Zelda's seal = Fast, concentrated, opposes Ganon, spherical (from Rauru), nonlethal, powerful, golden (from Hylia); a hybridization of both seals, the best of both worlds