P ower to go on even when it's difficult.
A bility to stay focused and put your heart on a certain activity.
S erves as something to hold on to even if there are lots of hindrances.
S trength that ignites you to accomplish what you aim for.
I nevitable power that comes within.
O ptimum love for what you are doing.
N ecessary, to keep you from doing what you love to do even if when you don't have the strength to go on.