Defining the way power will be exercised in the country's political system:
A democratic Constitution serves the purpose of defining the way power will be exercised in the country's political system. It establishes the framework for the functioning of the government and outlines the structure of various institutions and branches of power. It specifies the roles, responsibilities, and limitations of different organs of the government, such as the legislature, executive, and judiciary. This ensures that power is distributed and exercised in a balanced and accountable manner.

Guards against the misuse of power by the authorities:
Another purpose served by a democratic Constitution is to guard against the misuse of power by the authorities. It incorporates a system of checks and balances, which prevents any one branch of the government from becoming too powerful. For example, the legislature enacts laws, the executive implements them, and the judiciary ensures their constitutionality. This separation of powers ensures that no single authority can act arbitrarily or tyrannically. Additionally, a democratic Constitution often includes fundamental rights and freedoms that protect individuals and limit the government's ability to infringe upon them.

Protects the minority against the tyranny of the majority:
A democratic Constitution also serves the purpose of protecting the minority against the tyranny of the majority. It recognizes the importance of safeguarding the rights and interests of all citizens, regardless of their numerical strength. This is achieved through mechanisms like the rule of law, equality before the law, and the protection of minority rights. A democratic Constitution ensures that decisions are not solely based on the will of the majority but also consider the concerns and rights of minority groups. It provides avenues for minority voices to be heard and taken into account in the decision-making process.

All of the above:
In conclusion, a democratic Constitution serves multiple purposes, including defining the way power is exercised, guarding against the misuse of power, and protecting the minority against the tyranny of the majority. These functions collectively contribute to the establishment of a fair, accountable, and inclusive political system that respects the rights and interests of all citizens.