Positioned in the middle of the freshly cut East field of Hackney Downs in full sun I felt like a planet with its own orbiting moon(s) and gravitational fields. Dogs – like asteroids or meteors – approached and veered away in long and fast trajectories. I studied my position and made sure to look in all directions. On my way back from the downs I passed a young, 4 foot high horse chestnut tree that I hadn't properly observed before. The tree is ringed by a small cage on which there are handwritten notes to 'Dad' and 'grandpa'.