The Rule of Law is an idealistic concept that encompasses principles designed to ensure a fair and just legal system, essential for the functioning of a civilised state. It includes ideas such as equality before the law, transparency of legal processes, and accountability of government officials. While strict rules and punishments (B) are part of the legal system, they do not fully encapsulate the broader concept of the Rule of Law. A rule made by Parliament (C) is a part of the legislative process, and guidance on applying rules (D) pertains more to legal interpretation. Option E is incorrect as the Rule of Law is about limiting arbitrary state power, not enforcing it. 

Key Point: This question tests the understanding of the Rule of Law, highlighting its importance in maintaining a just and fair legal system.