Similarity between the Uzumaki Clan Symbol/Uzumaki Sealing Jutsus and the Uchiha Elder Son's Eyes?
Uzumaki Symbol
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Uchiha Ancestor
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there is a reasonable and plausible connection between the two of them:
The Uzumaki Four Symbol Seal In Naruto:
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The Juubi's Eye
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If we superimpose the images of the Uzumaki's Shishō Fūin (Four Symbol Seal) with the Juubi's Eye:
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It would look very similar to this: The Uchiha Ancestor's Eyes:
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This leads to the possibility that Rikudou Sennin used an Uzumaki Sealing Jutsu to imprison the Juubi thus him becoming its' first Jinchuuriki
The spiraling pattern in the Uchiha Ancestor's Eye is a manifestation of the sealing jutsu used by the Sage to imprison the Juubi
But, a question arises: If this is true then why didn't the Uchiha Ancestor inherited his Lord Father's Rinnegan instead of this Pseudo Rinnegan Looking Eyes?
The Answer Is: The Uchiha Ancestor lacked Rikudou Sennin's Yang, for it was the Senju Ancestor who inherited the body of the Sage while the Uchiha Ancestor inherited the eye. Therefore since you need both the eyes and the body of Rikudou Sennin to awaken the Rinnegan, then it is impossible for the Elder Son to awaken the blessed Rinnegan eye by himself.
Another Question: If this is true then the Uchiha descendants of the Elder Son would have possessed the Elder Son's spiraling pattern eyes instead of the Juubi-looking Sharingan with the tomoes.
The Answer: The Sharingan is the manifestation of the corrupting influence of the Juubi that was present when the Sage of the Six Paths sired his two sons and had affected the Elder Son, who became filled with hatred when the Father chose the Younger Son as his successor.
Another Question: If Rikudou Sennin's spiraled-pattern sealing jutsu is reflected in the Uchiha Ancestor's Eyes, then how did the Juubi's corruptive influence mutated the Elder Son's eye if it manifests the Fūinjutsu used by Rikudou Sennin to seal the Juubi in the first place?
The Answer: Hatred The Uchiha Ancestor started hating his brother the Senju Ancestor when the Sage chose the Younger Son (Senju Ancestor) as his successor rather than his Elder Son (Uchiha Ancestor) this gave rise to intense psychological emotions within the Elder Son. And what does intense psychological emotions awakens in an Uchiha descendant? The Sharingan, Since the Elder Son must have felt tremendous hatred towards his younger brother for being chosen over him by their Lord Father, then the corrupt influence of the Juubi must have mutated the Elder Son's Eyes from the Uzumaki Seal-like spiraled pattern appearance to the Sharingan of the present day, the manifestation of Rikudou Sennin's seal reflected on the eye of the Elder Son, transformed into the Sharingan of the Uchihas.
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What I am trying to point out is this: The Spiral Pattern of the Uchiha Ancestor's Eyes is an ocular manifestation of the Sealing Jutsu used by the Sage on the Juubi to seal it within himself, and when he sired his two sons, the Senju Ancestor inherited the body of the father while the Uchiha Ancestor inherited the eyes of the Sage which, like I said, manifested the spiral-patterned appearance of the sealing technique that Rikudou Sennin used which bears great resemblance to the Uzumaki Sealing Jutsu like the one on Naruto's, which probably makes Rikudou Sennin an Uzumaki
Now, leads to the second part of my theory: The Uzumaki Family is the parental ancestral family of Rikudou Sennin and is the original bloodline of Rikudou Sennin that split with the schism of The Uchiha and Senju Ancestors.
A question arises again: If this is true then the Uzumakis could not have performed sealing jutsus during the Sage's Era, even if the Uzumakis were the Sage of the Six Path's Parental Family, since only when Rikudou Sennin discovered the very nature of chakra and founded ninjutsu was any other people after the Sage able to wield chakra and ninjutsu, so its' impossible that the Sage learned the Sealing Jutsu used on the Juubi from the Uzumaki Progenitor Heritage, which is assumed to be the parental family of the Sage.
The Answer Is: It is not the Progenitor Uzumakis who thought Rikudou Sennin the sealing jutsus that the present-day Shinobi Uzumaki Clan are now renowned for, but, quite the contrary, it is Rikudou Sennin himself who taught his family, his relatives, the Uzumakis, the art of Fūinjutsu, He was the one who founded Ninjutsu and used this power to defeat the Juubi, then he used Creation of all things and had two sons: The Elder Son and the Younger Son which are the Yin and Yang of the Juubi. Now, since he had left the legacy of his physical and spiritual composition to his two sons (which came from the Juubi) : The Uchiha Eyes (powerful chakra/spirit energy) and the Senju Body (powerful life force and physical energy) then it is plausible that he left the art of Fūinjutsu to his own parental familial clan: The Uzumaki Family Clan, since Rikudou Sennin spread the teaching of Ninjutsu, then it only follows that if the Sage had a parental family with relatives he would also teach them the art of ninjutsu and wielding chakra, and what better ninjutsu to teach your own relatives other than the sealing techniques that Rikudou specializes on since he sealed the Juubi: Fūinjutsu, he left his biological and genetic legacy to his two sons, which are inheritable from the Sage because they were his offspring, but he must have also left something concerning chakra and ninjutsu that is transferable to his parental family or relatives: Sealing Jutsus.
Now, since I have established that the Uzumaki Family is most probably the progenitor family of both the Senju and Uchiha Clans (and the current day Uzumaki Shinobi Clan, those who are not immediate relatives of the Sage but belonged to Rikudou's parental ancestry none the less) which their father Rikudou Sennin is a member of that familial clan (I stress out familial from shinobi clan, since I wanted to specify that these were the progenitors or the very early ancestor clans of the present day Shinobi Clans) Then its' only natural that after Rikudou Sennin died, these secondary relatives of his, his Uzumaki relatives from which he was counted as one, would continue his legacy, and what legacy did he left them: Sealing Jutsus/Fūinjutsu.
Elder Son (Uchiha Ancestor) - Juubi's Yin: Sage's eyes
Younger Son (Senju Ancestor) - Juubi's Yang: Sage's body
Uzumaki Relatives of Rikudou- jutsu techniques inheritance/taught by Rikudou, left to them as his legacy
And since the sealing technique used on the Juubi by the Sage is most probably the same sealing technique used on Naruto by his mother Kushina Uzumaki (albeit to a lesser degree of power than Rikudou's)
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Then it follows that the symbol of the Uzumaki Clan was based on Rikudou Sennin's Sealing Jutsu's Appearance:
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That is demonstrated by the manifestation of the appearance of the spiral pattern of the Uzumaki Sealing Technique on the Uchiha Son's Eyes, the eyes which were later corrupted by the Juubi that birthed the Sharingan.
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Therefore, in conclusion, the Uchiha Ancestor's Eyes are the manifestation of the Uzumaki Sealing Technique Used By Rikudou Sennin to become the Juubi's Jinchuuriki. The Uzumakis being the original bloodline that split between the Uchihas and Senjus schism, while the sealing technique itself was passed on by Rikudou Sennin to his own parental relatives: The Uzumaki Family Clan.
