expression, noun
emotional wall; internal barrier
Metaphorical wall that prevents emotional closeness or open communication. Often used in psychological or interpersonal contexts.
彼女は心の壁を作っていて、なかなか本音を話してくれない。
She has built an emotional wall and won't easily tell me what she really thinks.
カウンセリングを通じて、少しずつ心の壁を取り除くことができた。
Through counseling, I was gradually able to break down my internal barriers.