To become a master at manifesting with the force of Intent requires a ruthless evaluation of one's life and how one is investing one's precious energies. If a person becomes convinced that his personal energies are indeed pricelessly valuable he will become extremely protective about how he invests his energies. All activities will become scrutinized for their value.
'How much of my precious energies am I willing to invest in this activity? Is it worth the investment or is it a waste and will postpone my ability to become a master at manifesting?'
Until a person reaches the point where he sincerely asks such questions and invests his precious energies consistently in increasingly wise ways he will most certainly waste himself and his potential.
It is said that the road to quick spiritual advancement requires one encourages all actions that make one stronger and discourages all actions that make one weaker; aiming for a life where one's only activities are those that make one stronger!