who 己 is indicating in this sentence


The person the speaker is talking to previously warned of disaster if the the
speaker didn't do something, but the speaker did not want to break traditions
and did not interfere. That person shows up again in front of the speaker
after that disaster did in fact occur.

> other person 私の話を思い出して、ここに……魔を封印した場所に来たのですね？
>
> speaker: ここに来たのは、己が揺らがぬよう戒めるためです。
>
> speaker その他に意味などあり得ません。
>
> other person いい加減に分かってください！人間に地上界を治める資格などありません！

You came here to admonish me for being steadfast (to my beliefs).

  * ここに来たのは、己(me)が揺らがない様（を）戒めるためです。

You came here to admonish me in a resolute way.

  * ここに来たのは、己(you)が揺らがない様（に）戒めるためです。

Normally it's pretty obvious from context who 己 is referring to, but i found
it difficult in this case.

thank you




Judging from the context you provided, I can be pretty sure that it means
_myself_.

己{おのれ} could surely sometimes mean _oneself_ and sometimes _you_ , but their
[registers](https://en.wikipedia.org/wiki/Register_\(sociolinguistics\)) are
so different that we almost never confuse them in real settings. 己 means _you_
in vulgar talks (or common in some dialect), and _oneself_ in elevated
parlance.

In this case, it is clear that speaker is giving a formal, bookish line, not
only in form but in matter. Thus it is only natural to be interpreted as
_oneself_ , in this case, _myself_.

**PS**  
Not knowing the plot, I'm not sure whether the 己 means "belief" as in your
translation, or "spirit", "soul", "super-ego" kind of thing (opposed to some
demon or evil).

**PPS**  
The translation of the second line:

> ここに来たのは、己が揺らがぬよう戒めるためです。

should be literally like:

> The reason I came here is to restrain myself lest it loosen/waver.

The accurate interpretation of 己, 揺らぐ, and 戒める is up to the context, though.




Judging from the context you provided, I can be pretty sure that it means
_myself_.

己{おのれ} could surely sometimes mean _oneself_ and sometimes _you_ , but their
[registers](https://en.wikipedia.org/wiki/Register_\(sociolinguistics\)) are
so different that we almost never confuse them in real settings. 己 means _you_
in vulgar talks (or common in some dialect), and _oneself_ in elevated
parlance.

In this case, it is clear that speaker is giving a formal, bookish line, not
only in form but in matter. Thus it is only natural to be interpreted as
_oneself_ , in this case, _myself_.

**PS**  
Not knowing the plot, I'm not sure whether the 己 means "belief" as in your
translation, or "spirit", "soul", "super-ego" kind of thing (opposed to some
demon or evil).

**PPS**  
The translation of the second line:

> ここに来たのは、己が揺らがぬよう戒めるためです。

should be literally like:

> The reason I came here is to restrain myself lest it loosen/waver.

The accurate interpretation of 己, 揺らぐ, and 戒める is up to the context, though.

