The Hammer and the Heat are both very active in speaking into your life; telling you what you need to hear and also drawing you out with those hard questions. The Water...gives you hope that change is possible. That person in your life, the Water, is the example that you look to when the going gets hard. They are the living proof that all of the work, the sacrifice...it's all possible and it's worthwhile. Without your Water, you're grinding away and will eventually land yourself in a pretty discouraging place.
Sensei Jason Franklin has been my friend and training partner for over a decade now. He is my Water in all things pertaining to fitness, training, and nutrition.
What's your goal? Who do you know that's already accomplished something similar? What can you learn from them?