expression, noun
my heart; my feelings; my mind
Literary or poetic expression for one's own heart, emotions, or inner thoughts. Often used in songs, poems, or reflective writing.
我が心はいつもあなたと共にある。
My heart is always with you.
この歌は我が心の叫びだ。
This song is a cry from my heart.
Phrase composed of 我が (archaic/literary possessive 'my') + 心 (heart/mind). The exact historical derivation is uncertain, but it follows classical Japanese possessive patterns.