there is a hope, because there is a disappointment. there is a disappointment, because there is a hope. we realize own toughness and weakness in the cycle name of life. there are not perfect human beings, that’s why we have a desire. it incite us. we can't go ahead without it. it is feeling from a sense and rational control emotional, finally reach an action. it's a series of flows. we supposition, elaborate a plan and take action by rational. realization of the desire. all for arrive at there.