wholeheartedly; with all one's heart
Expresses doing something with sincere feeling, care, or devotion. Often used as an adverbial phrase modifying a verb.
心を込めて手紙を書いた。
I wrote the letter with all my heart.
彼女
She sang the song wholeheartedly.
真心を込めて is a more formal, emphatic phrase meaning 'with utmost sincerity', while 心を込めて is the everyday way to say the same thing.
一生懸命 stresses effort and hard work toward a goal, whereas 心を込めて stresses sincere, heartfelt feeling in doing something.
Standard kanji spelling; the most common written form.
Kana-mixed spelling; common in less formal writing.
Uses the less common kanji 籠; rarely seen in modern writing.
A set phrase composed of 心 (heart, mind), the object marker を, the continuative form of 込める (to put into), and the conjunctive particle て. Literally 'putting one's heart into it'.