Humans differ from our co-inhabitants of planet earth due in large part to our vastly superior mental capacity. Our cognition involves the ability to hope in the future. Positive psychology around human flourishing involves the belief that forthcoming opportunities will hold better prospects than our life does at the present.
If we ask children what profession they desire to attain upon reaching adulthood, one hears big dreams including thriving as a famous singer, astronaut, football star, president, governor, ambassador, etc.