Redis How to restore Redis rdb?

I am following the documents about how to restore Redis and I am at complete loss at this point.

The document says

127.0.0.1:6379> SAVE 
OK

This command will create the dump.rdb file in your redis directory.

Which it does, it creates the exact same file for me in /usr/lib/redis which is alright I guess.

To restore redis data just move redis backup file (dump.rdb) into your redis directory and start the server. To get your redis directory use CONFIG command can be used. The CONFIG GET command is used to read the configuration parameters of a running Redis server.

127.0.0.1:6379> CONFIG get dir
1) "dir"
2) "/var/lib/redis/6379"

Here is where it makes no sense to me. The .rdb file for me is already saved in /var/lib/redis/ and I have no sub folder to that. I don't understand what "dir" is doing there and how I can restore my database.

Please enlighten me. I cannot restore the db.

Comment From: hypo-thesis

Okay so basically, the rdb file saved in /var/lib/redis/ is saved everytime the server stops and this can be moved to another folder and be used as a point for restoring every time redis service starts.