Because a normal person sees something as an obstacle, a person with an abundant mindset sees this as an opportunity.
It is always when you GIVE value to the world, will you be able to get something in return.
In some sense, monetary or otherwise. Just look at Elon musk and Larry page; Their companies solve a certain problems and give value to this world.
So perphaps the next time you see an obstacle, think about it as a opportunity. Very likely others will face that problem too...
The only question is, can you be the one with the abundant mindset?