Siddhar Idaikattar was a great saint and an expert in **Siddha medicine and astrology**. He is known for his **extraordinary wisdom in predicting future events** and his deep knowledge of **cosmic energy and natural healing**.

His contributions to Tamil Siddha medicine are significant, especially in **herbal formulations and rejuvenation therapy**. He believed in using natural elements to **balance the body's energy and cure diseases**.

Idaikattar’s spiritual teachings emphasized **meditation, nature worship, and inner enlightenment**. He was also known to have lived a simple life, spending time in deep penance and guiding seekers towards divine knowledge.