Jai Sri Ganesha,
Desire is a sort of attachment, which may bind self with respective cause,
Success to reach at the truth of desire cause joy to self, not the fleeting content of desire,
It is the state of possession and feeling of attained with may cause joy which may last for short,
When a man desires anything, makes his mind attached to it, that cause dependence unto desired object, in this transitory world everything is fleeting but the truth of self,
May Lord bless all,
Thanks, please