Miervaldis Polis made significant contributions to Latvian art beginning in the 1970s after studying at the Latvian Academy of Arts, where he became known as one of the innovators of his time. His 1974 exhibition featured works considered among the first examples of photorealism in Latvian art, showcasing a unique blend of technical skill and creative expression. Artists like Edgars Vērpe recall first encountering Polis' impactful pieces, which included striking subjects such as frying pans and eggs, indicating his unconventional and thought-provoking themes.

In the 1980s, Polis ventured further into performance art, which he described as spontaneous or phantom theatre. His public actions, such as "Ego Centrs" and the bronze figure, attracted considerable public attention, as they took art outside traditional gallery spaces and into the urban environment. This approach sparked unpredictable interactions between everyday life and artistic concepts, as evidenced by anecdotes from friends and fellow artists like Pāvils Raudonis, who reminisced about Polis' performances, where he embodied a statue while selling sunflower seeds to engage passersby.

Today, the legacy of Miervaldis Polis remains significant in the context of Latvian art, encouraging new generations of artists to explore the intersection of art and daily life. His work not only pushed artistic boundaries but also prompted critical discussions on the role of art in society, making him a pivotal figure in the cultural landscape of Latvia that continues to inspire and challenge audiences.