Mahavira, also known as Vardhamana, was the 24th and last Tirthankara (spiritual teacher) of Jainism. He played a significant role in the development and spread of Jain philosophy and teachings. The ideals of Mahavira are based on principles of non-violence, truth, non-attachment, and compassion. These ideals form the foundation of Jainism and are considered essential for achieving spiritual liberation.

1. Ahimsa (Non-violence):
- The most significant ideal of Mahavira is Ahimsa, which means non-violence or non-injury towards all living beings.
- Mahavira taught that every individual has a soul, and causing harm or violence to any living being, whether human or animal, hinders spiritual progress.
- He emphasized the importance of practicing non-violence in thoughts, words, and actions.

2. Satya (Truthfulness):
- Mahavira emphasized the importance of speaking the truth at all times.
- He believed that honesty and truthfulness are essential for leading a righteous life.
- According to Mahavira, speaking the truth promotes harmony and helps in the purification of the soul.

3. Aparigraha (Non-attachment):
- Mahavira advocated for non-attachment to worldly possessions and desires.
- He believed that attachment to material possessions leads to greed, selfishness, and suffering.
- By practicing non-attachment, individuals can free themselves from the cycle of birth and death and attain spiritual liberation.

4. Anekantavada (Non-absolutism):
- Mahavira introduced the concept of Anekantavada, which is the acceptance of multiple perspectives and the recognition of the complexity of truth.
- He taught that reality can be perceived differently by different individuals, and no one has a monopoly on truth.
- Anekantavada promotes tolerance, empathy, and understanding towards others' viewpoints.

5. Karuna (Compassion):
- Mahavira emphasized the importance of practicing compassion towards all living beings.
- He taught that individuals should develop empathy and kindness towards others, irrespective of their caste, creed, or species.
- Compassion promotes harmony, reduces conflict, and helps in spiritual growth.

In conclusion, Mahavira's significant ideals of non-violence, truthfulness, non-attachment, non-absolutism, and compassion form the core principles of Jainism. These ideals guide individuals towards leading a righteous and ethical life, promoting harmony, and ultimately seeking spiritual liberation.