lose oneself in
Become deeply absorbed or involved in, as in Doctors are notorious for losing themselves in their work. This expression alludes to becoming so absorbed as to forget oneself. [c. 1600]
Words nearby lose oneself in
lose one's mind,
lose one's nerve,
lose one's shirt,
lose one's temper,
lose one's touch,
lose oneself in,
lose out,
lose sight of,
lose sleep over,
lose the thread,
lose time