Immersing Oneself, Immersing Yourself, Immerse Oneself, Immerse Yourself
noun, verbal noun
All the extra things in your head die when you immerse yourself in one thing. That way the one thing you're focusing on is the only thing your brain hears.
ぼっとう
This is a jukugo word that uses the on'yomi readings of the kanji. You've learned them both already, so you should be able to read this word.
好きなことに没頭できるなんて、幸せですね。
If you can immerse yourself in things you like, you’ll be happy.