It's much easier to work on other people's music and play in other people's bands as a guitar player instead of being the main songwriter and singer. That's a really big job to do that.
A man who as a physical being is always turned toward the outside, thinking that his happiness lies outside him, finally turns inward and discovers that the source is within him.
I think it's imperative to follow your heart and choose a profession you're passionate about, and if you haven't found that 'spark' yet, if you're not sure what you want to do with your lives - be persistent until you do.

