Reddit reviews Bonsai Water Fountain Table

I had an office like that once. Maybe get someone to send you one of those mini water fountains so you can close your eyes and listen to the sound of water. Something like this

Also, visualization techniques. While you listen to the fountain or you could try one of those outdoors cd's (sounds of the rainforest etc) close your eyes for a few minutes and imagine you are there. Imagine the smells and how the ground feels under your feet. Springy moss or the trunk of a tree.