How does Martin Buber distinguish an I-Thou relationship from an I-It relationship?

In the philosophy of Martin Buber, the distinction between I-Thou and I-It relationships centers on how one engages with the world and other beings.12

• I-Thou Relationship: This is a direct, mutual encounter where individuals engage with the "fullness of their being." It is a creative, participative experience that recognizes the other as a unique subject rather than an object. Buber viewed this as the ideal mode of interaction between humans and the primary way to relate to God, the "Eternal Thou," who makes all other I-Thou relations possible.12
• I-It Relationship: In this mode, the other is treated as an object of thought, action, or utility. It is a functional, analytical stance used to categorize, study, or manipulate the world. While Buber acknowledged that I-It relations are often necessary for human survival and the advancement of science, he argued that they should not be applied to one's relationship with God.12

Buber’s ethics advocate for choosing an I-Thou relation whenever possible, while settling for an I-It relation only when necessary.2