In the 1960s, Arp continued to create sculptural works of entirely organic forms, which seamlessly follow on from his works of the 1930s and form a counterpart to the more cubist and architecturally motivated works, such as his so called "Threshold sculptures". This group of works in organic forms also includes the present work of "Angel's Torso" with its amorphously curved forms so characteristic of Arp, which abstract elements of the female torso as well as elements from nature and combine them in an inimitable way.
Nature was always one of Hans Arp's main sources of inspiration and he admired the laws of nature and its possibilities of metamorphosis, but strictly refused to copy or imitate nature. Guided by chance and intuition, the artist created his own organic, irregular geometry. He wanted to show and make tangible the development and growth of natural life, but not in a mimetic way. Arp established a link between the biomorphic forms of his sculptures and elements of the natural world to reveal the mysterious and poetic elements hidden in the environment around us.