A more thorough explanation:

A doctrine is a set of rules, principles, or theories that are widely followed in a field of law. It is formed through the continuous application of legal precedents. The term "doctrine" usually means that it is very important to a field of law or provides a comprehensive way to resolve a certain type of legal dispute.

Doctrine of Stare Decisis: This doctrine means that courts should follow the decisions made by higher courts in similar cases. For example, if a lower court is deciding a case that is similar to a case that was already decided by a higher court, the lower court should follow the decision made by the higher court.

Doctrine of Sovereign Immunity: This doctrine means that the government cannot be sued without its consent. For example, if someone wants to sue the government for damages, they must first get permission from the government to do so.

These examples illustrate how doctrines are important principles that guide the decisions made in a field of law. They provide a framework for resolving legal disputes and ensure consistency in the application of the law.