Despite his immense wealth, what was the primary source of sorrow for the Parsi merchant Ratanji?

The primary source of sorrow for the famous Parsi merchant Ratanji, despite his vast wealth and property, was his lack of a son. Chapter 14 explains that while he was outwardly "swimming in an ocean of joy," he was inwardly tormented by this persistent worry. The text poignantly states that the happiness derived from wealth is "entirely fruitless for one without a son." He had twelve daughters, but his daily contemplation was a prayer to Narayan for a virtuous son to support his lineage, which left his mind in a constant state of unrest and sadness.