lose (yourself) (in (something))

to stop worrying about yourself by giving attention to something else.

Out on the golf course, you can lose yourself and forget everything else in the world.

You can reduce stress by losing yourself in the pages of a good book.

• lighten your load
• light fire
• Lightning does not strike twice.
• lightning rod
• light relief
• lights are on but nobody's home.
• lights are on but no-one's home.
• light up
• light up something
• light up somewhere
• light your fire
• like a bat out of hell
• like a blue-arsed fly
• like a bolt from the blue
• like a breath of fresh air
• like a bull at a gate
• like a bump on a log
• like a dose of salts
• like a dream
• like a headless chicken
• like a lamb
• like a lamb to the slaughter
• like a lost soul
• like a man possessed
• like a million dollars