Position in poker is crucial because it determines the order of betting and the amount of information you have about your opponents' actions before making your own decision. Being in a later position allows you to see what others do before you act, which gives you an advantage. Generally, you should play more tightly from early position because you're acting first, which leaves you more vulnerable to aggressive plays from players who act later. However, you can play looser from early position in certain situations, such as when you're in a game with passive players, when you have a strong table image, or when you’re in a tournament setting with increased blinds and a need to accumulate chips. Adjusting to the dynamics of the game and your opponents' tendencies is key to playing successfully from early position.