This is the key to having undeniable trust within yourself to live. Each hardship, and obstacle makes you strong enough to move to the next moment willfully, in turn, strengthening your will power to push through. This pushing through is going to bring forth a breakthrough, and this breakthrough will break you through into a resting place into a new experience, in which you can float with a safe state through your constant pushing through. Your pushing through will build you a knowing that you WILL ALWAYS be able to lean on. Your willpower, is a held knowing, and holding of spirit/power. Your willpower when developed, you will constantly have the power to move forward. Your willpower is ability to say this WILL happen, and moving in that will, and essentially becoming the power that makes that happen. Will power is built by focus, and discipline. This can be done through focus training, and doing things that require you to be brought towards ONE SPECIFIC WAY as in saying "ok lets do 5 push ups today" no matter what, GO DO THOSE PUSH UPS!!! Once you answer the call to do those pushups, your truly building your personal will to MAKE something happen, essentially becoming a POWER (a force) I can say.