Choosing MBA as my next step of my life

Hi,
I am an expatriate working in Vietnam and its been coming up to 2years already.
What kept my mind thesedays is a thought that i should do more studies and the best way to moving forward is to go for MBA courses (definately my very personal outcome of a short experience i have lived).
The eternal goal of my life I pursue is to become a professional at a field and to become one, of course working experiences would fulfill it  but perhaps a better platform that i can start the career with.
However i merely have no idea of what it really is and how it might help me throughout my life.

If, anyone who has finished/doing MBA courses or anyone had a better way that you have chosen to make you so called professional, please advise me.

Cheers,
Bosco