プログレッシブ和英中辞典(第4版)の解説
いちねん【一念】
〔決意〕determination, resolution；〔熱意〕zeal；〔熱願〕an ardent wish ((for; to do))
生きようという一念が患者を回復へ向かわせた
The patient's determination to live led to his recovery.
母に会いたい一念から上京した
She came to Tokyo out of a single-minded desire to see her mother.
私の一念はきっとあの方に通じると思います
I'm sure he will understand my 「real feelings [earnest determination].
一念天に通ず
((諺)) Faith will move mountains.
一念発起
the determination to accomplish something
60歳になってから彼女は一念発起してドイツ語の勉強を始めた
At sixty, she 「firmly made up her mind to study [took the plunge and started studying] German.