凹き所に水溜まる（くぼきところにみずたまる）

Japanese vocabulary

Meaning: when the right conditions are fulfilled, things will turn out well on their own; a sunken place will collect water; someone in bad circumstances will continue to accumulate difficulties

See it used in real works

• Example sentences from Japanese novels & web fiction (Massif)
• Hear “凹き所に水溜まる” pronounced in real videos (YouGlish)