According to Dr. B.R. Ambedkar, the `heart and soul` of the Constitution is described as the Right to Constitutional Remedies. This right is provided by Article 32 of the Indian Constitution and ensures the fundamental right of citizens to move to the Supreme Court for the enforcement of their fundamental rights.

The Right to Constitutional Remedies acts as a safeguard against the violation of other fundamental rights provided in the Constitution. It allows citizens to seek legal remedies in case their fundamental rights are infringed upon by the government, public authorities, or any other individual or entity. It ensures that individuals have access to justice and can seek redressal for any grievances or violations of their rights.

Therefore, the Right to Constitutional Remedies is considered the `heart and soul` of the Constitution as it guarantees the protection and enforcement of all other rights provided to the citizens.