Why is it that the tiger automatically sets on its foot upon seeing its prey? The answer is simple--it wants to immediately have its meal. Why is it that the prey tries its best to get away from the tiger? Again, the answer is simple--it has its instinct to save its own life. The reason behind those behaviors is the motivation that drives both the host and the prey into action. In life, people have goals to attain and the motivation that they have is what drives them into acting out to attain those. There are a lot of reasons to get motivated.