One is your personal goal: I want to achieve this, and this, and this, in life.
The other should is a goal for the planet: What do I want to give?
Usually, when you think about a goal, you want to see what is it that you want to get. That is why I say you should have two goals: one is what you want to get, the other is what you want to give. If both become the same, it is even better.