A luminous and ethereally charged image by Catherine Yass, *Lock (opening) 1* captures a moment of transition and threshold, bathed in the artist's characteristically vivid, saturated colour. Yass's work often merges photography and film to create layered, dreamlike visuals that hover between stillness and movement. The piece evokes a sense of passage and anticipation, inviting the viewer to contemplate the liminal space between one state and another.