諦観{ていかん}が迷{まよ}いを殺{そ}いでくれてたんだ meaning

Question

I am not sure what this means...That line is said by the speaker to the listener.

「諦観{ていかん}」 = resignation

「削{そ}ぐ」 = to discourage; to weaken; to reduce (here I found that this verb can be written like this 「殺{そ}ぐ」with the kanji that it usually for 'kill' and I think here it was used to give it a more serious nuance)

「迷{まよ}う」= to lose one's way; to waver; to hesitate;

How would 「諦観{ていかん}が迷{まよ}いを殺{そ}いでくれてたんだ」 translate...?

"Your resignation weakened me?" (I am so unsure of what the speaker is saying)

Answer 1

Let's make the structure clear:

• 諦観が (Subject)
  • 諦観
    You are right that the word now means "resignation", or an "it can't be helped" feeling. Its true meaning is, however, embracing Buddhist truths. Since Buddhism emphasizes detachment from worldly desires, (secular) people started to use it that way.
  • が ← the nominative particle (marks subject)
• 迷いを (Object)
  • 迷い
    While it's true that it comes from 迷う, the word form is a verbal noun that means "indecision; hesitation; perplexity".
  • を ← the accusative particle (marks object)
• 殺いでくれてたんだ (Verb or predicate)
  • 殺ぐ
    It means "to brake; reduce; slacken; lighten" and has little to do with "kill" meaning of 殺. Although they share the same kanji, the murder 殺 is read in on'yomi サツ/セツ (e.g. 殺人 "homicide") and the reduction 殺 is サイ (e.g. 相殺 "offset").
    • 殺ぐ (dictionary form)
    • 殺いで "reducing..." (te-form)
    • 殺いでくれる "reduce for me" (beneficial)
    • 殺いでくれて "reducing ... for me"
    • 殺いでくれて（い）る "be reducing for me"
    • 殺いでくれて（い）た "was / have been reducing for me"
    • 殺いでくれて（い）たんだ "it is that ... was / have been reducing for me" (explanatory)

As a whole, it'd mean something like:

(The fact is that,) the resignation used to lessen the dither, thankfully.

Whose resignation and whose dithering they are talking about, is unknown from the piece, but both should be the same when unexpressed. No matter who it is, くれる indicates that it is the speaker that was happy with that.

Answer 2

諦観 has two meanings, “resignation” and “clear vision”
It means “My clear vision used to extinguish my hesitation.”

He maybe has lost his clear vision and now hesitates to do something or he has a clear vision but it can’t extinguish his hesitation.