Discipline can be our ability to keep doing what we are doing, knowing we will achieve sucex in the future even if everything seems to be working against us.
Edison tried the light bulb experiment over a thousand time before he got it.
John D Rockefeller wrote application letter to over 300 companies in less than 3 months before he got his first job as a book keeper.
Discipline is not an easy one though but its our only wife, wife to the husband of faith. Discipline brings about efficiency in us, each time we come back to do something we had done before, there is a newer zeal or knowledge we carry, discipline connects us with our endeavor and opens up vista of opportunity to excel of know more. When we continually work on a thing ,a time comes when we are so attuned with that things to the point that the knowledge or efficiency in it becomes easier for us. Psychologist call it flow, in the ordinary world we say its inspiration. When we are inspired about a thing, it becomes easier for us and over time, we become gurus in it, this is the reason a person with much years of experience is seen as better than someone with less years of experience. Experience is the fruit of our dedicated discipline to endeavours.
Discipline yourself and watch as life follows you.