The 29-year-old told FIFA.com: "I've always dreamed of playing in the World Cup and wearing the Selecao jersey, but I knew how difficult that was, what with me playing in Ukraine for Shakhtar.
"Last year, though, when I moved to England and began playing in a much bigger league with a much higher profile, I could see things coming together for me. I fought hard, chased my dream and got the call-up for the game with South Africa in March. Everything I did from June 2013 onwards was with the goal of making it here to the World Cup.
"[After the match] I went back to the hotel, had a bath and tried to stay focused, while my family were at home getting congratulatory messages from everyone. I'm sure they felt more excited about the whole thing than me, but I was delighted to make them that happy."
Brazil will face Chile in their last-16 match tomorrow.