魚心あれば水心 うおごころあればみずごころ if you do a favor for somebody, you will get a return favor; if a fish is friendly toward water, water will be kind to the fish too; mutual back-scratching exp proverb Advanced ➥
木魚 もくぎょ fish gong; fish wood block; temple block; round, hollow, wood block (vaguely fish-shaped, usu. with scales), struck while chanting sutras n Buddh Advanced ➥