In some cultures, the entrance to adult hood begins with a vision quest. Through vision quest the seeker finds the seed of a goal that structures the entire life. Having a life time goal focuses the attention and all the energies we possess to work in harmony with our thoughts, emotions and actions.
Life time goals serve similar to a home blueprint. Other goals become the rooms in your home. Without lifetime goals, your oven may end up in your bathroom. You can still work with it, but the experience may not be as pleasant.