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The full sentence is:

> 何{なに}もかも手{て}にした気{き}でいたんだ

For now I think 何もかも手にした comes from 何もかも手にする 'to obtain just about everything
/ almost everything' but I can't understand the purpose of the rest and how it
changes the meaning of the phrase.
CC BY-SA 4.0
2018-10-21T03:06:15.397
62310
2018-10-29T14:41:49.890
28060
question
grammar
what's the purpose of '気でいたんだ' in this sentence
～～した気でいる means "to (keep/stay) think/imagine/feel(ing) that one did~~". (≂
～～したつもりでいる) (cf. 「～～した気になる」 "to think/feel/imagine one did~~", 「～～のつもりでいる」 "to
fancy oneself as~~")

何もかも手にする means "to gain/obtain (anything and) everything".

So 何もかも手にした気でいたんだ literally means "I thought/imagined that I had obtained
everything."
CC BY-SA 4.0
2018-10-21T03:51:08.113
62312
2018-10-29T14:41:49.890
2018-10-29T14:41:49.890
9831
9831
62310
answer