“And when your Lord said to the angels, ‘Indeed, I will make upon the earth a khalifah.'” [2:30]
Let’s talk about our purpose.
A good starting point is the creation of mankind which the Quran begins with the verse above.
A khalifah is a successor.
Allah wants us to be a successor on the earth.
What is the purpose of a successor?
To carry out the vision of the one who they succeed.
That was the job of Adam (as) and all his descendants.
What do you think is meant by a successor?