A country's system of democracy works well only if the people freely participate in its governance. It does not mean that everyone participates in it directly but that everyone has right and duty to participate in it, directly or indirectly.
In a democracy, an important means for people to exercise their political power are elections. All adult men and woman vote to elect their representatives. In doing so, they are indirectly participating in the governance of the country.
The elected ones take part in the government directly but on the behalf of the entire community. If people are not satisfied with their government, they can remove it in the next elections. People not all elect their government, but also control it.