My sister and I have had a few conversations about whether poker constitutes gambling or not, and I won't rehash those friendly debates here, but suffice it to say that while poker, like all card games, involves the luck of the draw, it is mostly about psychological domination and strategy, or how you play those cards. This is why poker is such a natural symbol for the aggressive nature of modern life and a specifically American view of individualist success. You are dealt a certain hand, but what matters most is how you play those cards. Poker is a modern game, and it aptly represents the "winner-take-all" strategy for success in a cut-throat American capitalist society. In that way, poker is a perfect symbol for a naturalistic view of life. This is one reason poker figures so prominently in a number of Jack London stories and novels, including Burning Daylight.
Poker also emerges as an important symbol in Tennessee Williams's masterpiece, Streetcar Named Desire. During the play's famous poker night scene, to which the women are pointedly not invited, Stanley erupts in a display of violence and physically abuses his wife. The poker game serves as a display of masculine male power, and this patriarchal power structure remains closed to women, although they receive the brunt of its ugliness. The play ends on the line, "The game is seven-card stud," suggesting that, as Blanche is carted off to the asylum and Stella submits to Stanley's power, the structure remains firmly intact. The game continues and women remain oblivious to its rules, even as they are subject to its power. This is one reason my sister is cool, because she has infiltrated this game, questioned its traditional male power, and benefited from the outcome.