Final answer:
In Constantin Brancusi's sculpture Bird in Space, he abstracted and simplified form to reach the essence of the subject. His elegant, elongated forms convey concepts like movement and ascension, embodying the modernist focus on conveying internal truths through abstraction.
Step-by-step explanation:
In Constantin Brancusi's sculptures, such as Bird in Space, he reached for the essence of the subject by C. Abstracting and simplifying form. Brancusi was a pioneer in modern sculpture, and his work is characterized by smooth, clean lines that evoke an essence or idea rather than a realistic depiction. He stripped away the details to capture the spirit of his subject matter, which in the case of Bird in Space, is the notion of flight and ascension rather than an anatomical study of a bird. The sculpture is an elegant, elongated form that conveys movement and the freedom of flight without depicting feathers or other detailed bird features. Brancusi's approach is a stark contrast to traditional representations of subjects; he aimed to convey the fundamental qualities inherent to the subject itself. This style reflects the broader modernist movement, where artists sought to simplify forms to their geometric essentials and reveal an internal truth through abstraction.