The earth holds the seed, and the result is that a plant springs out and bears fruit. So with the heart; the heart holds the seed of thought, and there also a plant springs out and brings the fruit of fulfillment. But it is not only the thought, it is the power of holding the thought which is of very great importance. Therefore the factor of the heart, a factor which holds the thought, is of very great importance for the fulfillment of life's purpose. Often a person says: "I try my best, but I cannot concentrate my mind; I cannot make my mind still." It is true, but it is not true that he tries his best. "Best" does not end there. "Best" really brings the purpose to its fulfillment.