Quote from : Siddhartha Book

On a strange and devious way, Siddhartha had gotten into this final and most base of all dependencies, by means of the game of dice. It was since that time, when he had stopped being a Samana in his heart, that Siddhartha began to play the game for money and precious things, which he at other times only joined with a smile and casually as a custom of the childlike people, with an increasing rage and passion. He was a feared gambler, few dared to take him on, so high and audacious were his stakes. He played the game due to a pain of his heart, losing and wasting his wretched money in the game brought him an angry joy, in no other way he could demonstrate his disdain for wealth, the merchants' false god, more clearly and more mockingly.