Verse 49

मिथः कारणमेते हि बीजे जन्मनि चेतसः ।जलाङ्गीकरणे राम जलाशयघटाविव

In plain words

These two are, indeed, each the cause of the other in the birth of citta, O Rāma — as a reservoir and a jar are each needed together for the taking-in of water.