The concept of "locus of eemaan" is not a standard term in Islamic theology or jurisprudence. To understand what you might be asking, we need to clarify what you mean by "locus":

Possible interpretations of "locus":

* Location: Where does faith reside physically? This is a complex philosophical question and not typically addressed in Islamic thought in a literal way.

* Origin: Where does faith come from? This is answered in Islam by the belief that faith is a gift from Allah (God).

* Foundation: What are the foundational principles of faith? This is a fundamental question answered by the six articles of faith in Islam: Belief in God, Angels, Divine Books, Messengers, Day of Judgement, and Divine Decree.

* Manifestation: How is faith expressed? This involves actions, beliefs, and behaviors that demonstrate one's faith.

Clarifying your question:

Please provide more context or explain what you mean by "locus of eemaan". This will help me give you a more accurate and relevant answer.

For example, you could ask:

* "Where does faith reside physically?"

* "What are the core beliefs that define faith?"

* "How do people express their faith?"

Once you clarify your question, I can provide you with a more comprehensive explanation based on Islamic teachings.