People with goals succeed because they know where they're going. It's that simple.
-- Earl Nightingale (1921-1989)
If you do not set a goal to excel in your learning journey, you will not likely to excel.
If you do not see passing an examination as a goal, you will not likely to put in enough efforts in your revision, and you may not pass the examination.
Goal setting is the visualization of something that you wish to have in reality!
Just thinking about it may help you to channel your energy subconsciously!
With that, you will reach your goal with focus efforts and success will be the outcome of your input!