Hi, Biko :)
I think in this case, "dedicated" means devoted, addicted, obsessed, Its about a person, believing that something is very-very important, and giving much time and energy to it.
ex. 1.a dedicated father/teacher
2.she's completely dedicated to her work.
3.Chuck Comeau is the drummer of the band, Simple Plan. He's hard working and dedicated to his band and is one of the main songwriters.
4. Gee Whiz, your so dedicated to sniffing cats! I really love that in a man...
Sure, it`d be better if you would provide me with some context... anyway, hope my answer will help.
Ay khedma :p