To dream about ice cream could mean you want some refreshment in your life. Maybe you’ve just got a boring job and you want a change, or you want to explore more of the world. If the ice cream is melting, it could mean you are running out of time and want to achieve something in particular before a certain time.
Maybe you’ve got some goals that you know you should be working on but you’ve just not been doing anything to move towards them. It could also mean you’re worried that life is short and you’re going to die soon.