| Simple
Analogy |
|
|
|
|
|
|
| l | You want to send
a letter to your friend and |
||||
| make sure he’s
the only one who reads it |
|||||
| l | You have signed up for “magical” postal |
||||
| services |
|||||
| Postal Service |
| Address with a personal
seal |
| Sender |
| Receiver |
| letter |
| letter |
|
|
| Prepares |
|
| Package |
|
|
|
| Unpacks |
|
| Package |
|
| Ripped Letter Pieces |