Abstract Language: 
Language describing ideas and qualities rather than observable or specific things, people, or places. The observable or "physical" is usually described in concrete language.


Example:
"Love is our true destiny. We do not find the meaning of life by ourselves alone- we find it with another."
-Thomas Merton 


Explanation:

Try to create a mental picture of "love." You can't observe or physically see love. You generally picture a couple holding hands, a child hugging a mother, roses and valentines as examples of  "love." Instead, these are ideas or qualities that are associated with love. There are no specific of evidence and how it is true destiny, it is just a idea that many people have.