塞翁失马

1. • lit. the old man lost his horse, but it all turned out for the best (idiom)
2. • fig. a blessing in disguise
3. • it's an ill wind that blows nobody any good

Character by character

• 塞(sài)strategic stronghold
• 翁(wēng)elderly man
• 失(shī)lose
• 马(mǎ)horse