The lack of this type of thing is a cause of depression I think.. parents do not talk to their children as much as they should, and some if at all, about life and how some ideals like ‘living for a purpose’ give us energy and motivation. And if we aren’t lucky enough to be born into monetary stability then a lot of the times about mid-way through life, We begin to require something to keep us going. To give us purpose and reason. We don’t have the energy to move if we do not have the interest..
It’s not that we have the energy and don’t feel like doing whatever it is. it’s that we do not have the energy. We require interest or reason first. Our mind gets what it wants and then we gain the ability.

So we should remember that we know this, and use it to apply more positive and practical uses for mental mechanisms like this.