The character in "The Unbearable Lightness of Being" experiences a dual attraction to both darkness and light. Despite the modern convention of intimacy without dimming the lights, he finds comfort in keeping a small lamp on as a way to blend the two worlds. This juxtaposition reflects his complexities and the societal norms he navigates.
At the moment of intimacy with Sabina, he is drawn to close his eyes, seeking the pure pleasure that darkness brings. For him, this darkness symbolizes an infinite, thoughtless escape—a realm beyond physical limitations. It represents an essential inner experience that transcends the boundaries of light, signifying a deeper understanding of human connection and desire.