Shaykh Ashraf Ali Thanwi (Rahimahullah) has given an example of a person who is a slave. He is bought in a bazar and commanded to do certain duties and thereafter leaving him in charge, his master leaves.

In his master's absence the slave knows he is still a slave even though his master is not there and so when his master returns he has no delusions of being anything other than a slave.

Similarly we should know our Haqeeqat (reality) that I am a servant of Allah and not be under any delusion.