Answer:
The characteristic of human goals that is responsible for their "energizing effect" is that, by involving a series of created expectations and their emotional connection with the person, they are adrenaline-generating.
Adrenaline is a hormone that is released in large quantities in conditions that are perceived by the body as threatening to survival and therefore cause stress. Often this is accompanied by fear and anger. Cold, heat, hunger, thirst, pain, physical exertion and other things that disturb the balance in the body can also increase adrenaline production.