Envy exists because someone seems to have or you assume that they have something more than you, and you feel less than them. Envy can exist only if there is someone else better than you. If you are here by yourself, envy cannot happen.
So it means for envy an other person is needed !
But passion is not like that. Passion can happen even if there is no one .
Passion can be anything .You can draw passionately, you can read passionately, you can do your gardening passionately, you can cook passionately, or you can just walk passionately.It is just that you have deep sense of involvement.
Whatever is in touch with you right now, you are deeply passionate with that. Even if no one was here, you can live in great passion .But if no one is here, you cannot live enviously. You need someone to cause that for you – you need help!
Live passionately !