wörtlich
... is German for literal, verbatim (externer Link)
literal here means: interpreted without any hidden meaning behind the actual word or letter you see. "You need some sun in your life" may be interpreted literally. It then means: "You may have a skin disease which can be cured or alleviated when the skin is exposed to the sun. Therefore, some sunny days would really help you." Taken figuratively (which is the opposite of literal) means that your life is perhaps dull and unsatisfying. You need some happiness and succes. Happiness and success are then expressed by the word sun.
Verbatim means a strict copy without any changes to any character or word in the given text.