I would say the answer is a metaphor hope this helps:)
There are several steps you need to follow if you want to report fraudulent or incorrect charges to your credit card company:
1. Evaluate the charge
2. Contact the merchant first
3. Contact the credit card company
4. Mail dispute paperwork
5. Wait for them to investigate your dispute
6. Appeal if necessary
To create a better image in the reader's mind. The use of imagery creates a better picture when the reader imagines the setting. Since when reading everyone thinks of a different picture imagery helps to create a picture closer to what the author imagined.
