Envy is an attitude when someone accomplishes your hope.
Envy is an emotion that branches out from hope caused by empathy. Envy occurs when people recognize another person's success. For example, most people become envious of the person who wins a lottery. At that time people want what the other person has that they don't have. Envy is an emotion that occurs when someone accomplishes what you hope to do.
Since the conditions of occurrence are similar, jealousy and envy sometimes occur at the same time. If a stranger won the first prize in a lottery a person may only feel envy, but if a rival at work is promoted ahead of a person the person may feel jealousy more strongly than envy.
Envy enhances the image of one's future success, and promotes taking action when one recognizes another's success. It is assumed that envy has the effect of enhancing hope.
Envy's behavior includes sighing and a wishful look on the person's face. This is a signal that there is something remarkable that deserves attention. This means that this behavior has the effect of getting help from others.