What am I here for

Hint 1 of 6:

There is a hint for the last part of the game here.

Hint 2 of 6:

Did you go into all 4 sleeping rooms?

Hint 3 of 6:

Did you examine each room?

Hint 4 of 6:

Did you read the plaque in each room?

Hint 5 of 6:

Combine the phrases into a sentence.