Piet Mondrian's artistic vision significantly influenced modern art movements through his development of abstract art and the De Stijl movement. He emphasized simplicity and purity, using a palette of primary colors and geometric forms to manifest his belief in visual harmony. Mondrian's grid compositions challenge traditional notions of representation, encouraging a focus on balance and proportion. His revolutionary ideas influenced artists who sought to break away from realism, leading to the emergence of movements like Minimalism and Contemporary Art. Mondrian’s legacy endures as a cornerstone of modern design and aesthetic theory.