What are everyone's thoughts on what defines a "realistic goal" given the opportunities presented in this day and age?

As I've gone through life (though I'm only 25), the idea of "becoming filthy rich" pretty much grows more and more unrealistic/unlikely, and the whole "special snowflake" mentality has become increasingly apparent. Which yeah, is depressing in a way.

So I've set myself the goal that before I'm TOO old, I want to have a passive income, of some measure.
The idea of financial freedom is more appealing than a lifestyle of high income/high workload. To me, anyway.

What are your financial goals?
Do you think they are realistic?
Do you have a plan?