Consider the following statements regarding the legal position of the Preamble:

1. It may assist courts in interpreting a constitutional provision that is ambiguous or capable of more than one meaning.
2. It is an independent source of legislative power.
3. It independently prohibits the exercise of a legislative power expressly conferred by the Constitution.
4. Its provisions are not directly enforceable in a court of law.
5. It may be amended under Article 368, but its fundamental or basic features cannot be destroyed.

Which of the statements given above are correct?