The 40-year-old former Barca midfielder on Thursday oversaw his first training session after taking over as the Seagulls' new head coach.
"I'm impressed with the people I'm working with at Brighton and I'm very happy, it's a pleasure for me to be here," he said.
"In the morning I met all the players and I saw a lot of good things. I knew English football and I knew some players who are playing here.
"My obsession is to attack, to attack the opposition, to keep the ball and to have the ball as many times as possible. If we have the ball we will have many chances to score and win the game. That's my philosophy.
"If you play good football you will have more chances to win than if you play bad."
Despite a successful playing career which also took in Valencia and Espanyol, Garcia, who quit as boss of Maccabi Tel Aviv last month, says he was always destined to become a manager.
"When I was a professional player I was always thinking about what the coach was thinking and why he did certain things," he added.
"I started to think that I wanted to be a manager or a coach. I love thinking about how we can win a game, how we can create an opening - these kind of things got me thinking that I wanted to be a manager.
"It's difficult because when you are a player, you think maybe only about yourself but when you are the manager you have to think about maybe 30 people and it's not easy. But when you prepare for a game and you've done something in training which you then see the results of on the pitch, it makes you very happy."