Verb (5-dan, る, intransitive)
1. to stick into (of something with a sharp point); to prick; to pierce; to get stuck (in); to lodge (in)
彼の後ろの壁に、銀色の小さなナイフのようなものが刺さった。Something like a small silver knife stuck into the wall behind him.
2. to resonate emotionally; to move
その言葉は、わたしの胸にも刺さる。Those words hit home for me, too.