Uh. It's really hard to put in words, but I'll try my best...
It all comes down to the pursuit of some large goals (like, changing yourself to be a better peron, whatever that my translate to) being the actually important and rewarding part - more so than the goal itself. You could also say that the way - the effort - is a goal in itself.
Another important point is that everything (at least, everything we may possibly encounter) is in some way a process. Or, as the presocratic philosopher Heraclitus introduced to the world of western thought, Panta Rhei. Most of all, we are a process, too. What we may describe as a state [I'm a good person] is in fact a process [of trying to do the right thing all the time], too.
Gosh, this really is hard to write down...
I think that it is also possible to derive from these points that the value of a goal can be defined by, or at least is directly proportional to, what we gain by making the effort to reach it. And if you don't have to make -any- effort - you just wish and whoa! there you go, fancy wrappings and everything - then the goal suddenly loses the value it held for you, or, in other words, is not an achievement, because it didn't take anything to achieve!