to come to realize; to become aware (of)
彼の言葉に、ふと思い至った。
His words made me suddenly realize.
自分の間違いに思い至って、彼女は謝罪した。
Realizing her mistake, she apologized.
自分の本当に大切なことに思い至る瞬間は稀だ。
Moments when one truly comes to realize what's important are rare.