This is the 3143rd most frequent Japanese word.
刺さる
"刺さる" means "to pierce" or "to stick into."
In this sentence, '刺さる' is used to describe the physical action of an object (needle) piercing or being embedded in another object (finger).
その針が指に刺さった。
The needle pricked my finger.
Here, '刺さる' metaphorically expresses the impact of words, indicating they left a deep emotional impression.
彼の言葉は私の心に刺さった。
His words pierced my heart.
'刺さる' in this context describes the state of an object (arrow) being embedded into another object (tree), emphasizing the resulting condition.