Simple it is, all we need to do is be happy! for if we are happy, we are open, if we are open, we are loving, if we are loving, we are kind, generous, forgiving, if we are kind, generous, forgiving, we create unity harmony and love in the world! the thing which isn’t so simple is, if we are only happy, we get too excited, and when a person’s emotional state, overtakes their logical rationality; they of course lose their logic and rationality, and if they lose their logic and rationality, they do stupid things, as the saying “the road to hell, is paved with good intentions,” so to calm down the emotional excitability, one must simultaneously think about that which is somewhat depressing i.e. Moshiach will reveal in a visual way God, hence as this is something you want, but cannot have, it creates a lessening of your emotional excitability.