Not all ministry is professional, or ordained, or involves seminary training, but all involves service with a moral purpose. For the purpose of this exercise, let's just say that if you think of yourself as doing, or wanting to do, ministry, then you are.
How have you become aware of your deep motivations toward ministry.
Here is an exercise, that is a variation of the exercise on page 34 of "Not For Ourselves Alone", edited by Burton Carley and Laurel Hallman.
Take a blank sheet of paper and lay it in landscape mode before you.
Draw a line from the top to the bottom of the page in the center of the page. Like this: