It's a nonessential word, clause, or sentence added to an already grammatically complete sentence. It's most commonly set off by brackets, but it can also be set off by commas or dashes.
Example:
My mother went to the supermarket and picked up some strawberries (my favorite fruit) earlier today.
Answer:
yes because its your own life its not no one elses life but yours :)
Answer:
Yes the term evil can connect to savage. It can be connected with evil because savage can be defined by cruel, or untamed like many villains.