If a person is clear in his thoughts regarding the purpose of life, then nothing can stop him. Even If he will fails again and again, then his will fight back. This failure will make him more strong and will improve his determination.
This will be his strength for future and success will follow him.
We know that the physical '
strength can only be developed by effort and practice'. This is equally true for Thoughts also.
As the physically weak man can make himself strong by careful and patient
training, so the man of weak thoughts can make them strong by exercising
himself in right thinking.
A clear pur pose always helps in strengthening your thought.