The main fundementals of baseball are hitting and fielding. Fielding is much easier than hitting, I think. Fielding is basically picking up a ball and throwing it to first base or wherever. Hitting is just focusing on the ball and putting it in play. It is this easy once you have been playing for a while, but it is not when you are beginning. Once you learn how to play the game, though, it becomes easier. That is just why you have to practice.