There's sometimes a tugging feeling you get to push further when you aren't being challenged enough or when things get too comfortable.
One may not always know his purpose until his only option is to monopolize in what he truly excels at. He grows weary of hearing the answer 'no' time and time again, so he turns to and cultivates, monopolizes in his one talent which others cannot possibly subdue. Then, beyond the crowds of criticism and rejection, the right people recognize his talent - among them he finds his stage.
You have to conquer every obstacle, before you can reach the top of the mountain.
It is easier for one to take risks and to chase his dreams with a mindset that he has nothing to lose. In this lies the immense passion, the great advantage of avoiding a materialistic, pleasure-filled way of life.
Even if you feel like you're giving it your all, but still not seeing the desired results; Keep Going. Sometimes the Key to Your Breakthrough is to Persevere and to Not Give Up.