Read the following passage and answer the question:
'The Constitution of the Republic of South Africa, adopted in 1996, is regarded as one of the most progressive constitutions in the world.
It enshrines fundamental rights and freedoms for all citizens, irrespective of race, gender, or socioeconomic status.
The Bill of Rights, contained in Chapter 2, serves as the cornerstone of democracy in South Africa.'
What is the primary purpose of the Bill of Rights according to the passage?
