This reminds me of the story of the woman who told a piano great after a concert that "she'd give her life to play like him" to which he responded " I did...."
Obsessions are often thought of as such by those who don't have them. If you are Tiger Woods, you're probably doing what comes naturally. Is he forcing himself to practice every day because he is "supposed" to? (Granted, his father may have forced him when he was little....)
Stephen
Power-Book Library: Free personal development, success, inspiration and motivational classics