How can I explain this to my brother?

My self Sumit Sharma from India. Engineering Student but do not like to be engineer. I have been blogging since December 2012 and very happy to do this (PapaBlogger: My blog). Now it has become my passion. I am not earning good money right now so my elder brother is worried about my future. I have performed well in blogging and want to continue this further. But I don’t know how to explain this to my brother. I do not want more money just want to be happy with my work. As a part of HN I need some suggestion for this. Thanks in advance.