Gambling is the game that tests one's thinking and judgment the most. The first floor is a standard gambler. If you lose, you must cheat and continue to borrow money. The second realm only touches on some rules of gambling, and you won't lose much if you insist on gambling. The third realm is to completely master the gambling skills, follow one's inclinations, win without arrogance, and lose with grace. You can really be called a gambler, knowing when to fight, when to keep, when to quit and not to be greedy. Only in this way can we make a difference. This is the truth of being a man and the true meaning of gambling.