The principle of 'Right Faith' as propounded by Mahavira Jain is that one should have an unshaken belief in the teachings and wisdom of Mahavira. This belief is a fundamental aspect of Jainism, a religion founded by Mahavira in ancient India.

**The Teachings and Wisdom of Mahavira:**

Mahavira, also known as Vardhamana, was an enlightened spiritual teacher who lived in the 6th century BCE. He is considered the 24th and last Tirthankara, or spiritual leader, in Jainism. Mahavira's teachings revolve around the concepts of non-violence (ahimsa), truth (satya), non-possessiveness (aparigraha), and the path to liberation or salvation (moksha).

**Unshaken Belief in the Teachings:**

The principle of 'Right Faith' emphasizes the importance of having a steadfast and unwavering belief in the teachings and wisdom of Mahavira. This belief is not just a superficial acceptance but a deep understanding and internalization of the principles and values taught by Mahavira.

**Importance in the Spiritual Life:**

According to Jainism, the path to liberation or salvation is through the three jewels: Right Faith, Right Knowledge, and Right Conduct. Right Faith forms the foundation of the spiritual journey and is essential for progress on the path of self-realization.

**Role of Ahimsa:**

While the doctrine of ahimsa is an important aspect of Jainism, it is not the central focus of the principle of 'Right Faith'. Ahimsa, or non-violence, is a principle that guides one's actions and thoughts towards all living beings, promoting compassion and respect for life. However, 'Right Faith' goes beyond ahimsa and encompasses a broader understanding and acceptance of all the teachings of Mahavira.

**Not Believing in a Theory of God or Creator:**

The principle of 'Right Faith' does not encompass the belief in a theory of God or a creator. Jainism is considered an atheistic religion, as it does not recognize a supreme being who created and governs the universe. Instead, Jainism emphasizes the importance of self-realization and individual effort in attaining liberation.

In conclusion, the principle of 'Right Faith' in Jainism refers to the unshaken belief in the teachings and wisdom of Mahavira. It is a foundational principle that guides the spiritual life of a Jain and encompasses a deep understanding and acceptance of the core principles of Jainism, such as ahimsa, truth, and non-possessiveness. However, it does not include a belief in a theory of God or a creator.