How do you come up with a vision?

You may already have a vision for the future, maybe you had a really bad day at work
and finally told yourself that you have had enough and that your life is going to change,
this could cause you to arrive home and write out and define a plan for your future.
Likewise you could become inspired after reading a book, or after watching a movie, one
that leaves you feeling happy, motivated and positive. Happy state, angry state, depressed
state, motivated state, relaxed state, there are no hard and fast rules for when to define a
vision. Your vision will start as a thought, from there you will want to write it down,
define it, and turn it into something more than a thought, something real, a document first
and foremost, either paper or electronic.
The important thing is to find time to actually define it and turn it into a tangible
document that you can read, view, and be reminded of daily. Many people will happily sit
down and make a will for what to do with any possessions when they are no longer alive,
well how about a document that states what you want to happen while you ARE alive! A
will of a different kind! If people spend time writing about what must happen when they
are dead, surely people can spend time writing a document about what will happen when
they are alive, and one that will actually serve them in a positive and beneficial way!