Sorry if this one's a bit long, more like a short story, but it took on a life of its own.
The hospital bed stood lonely in the middle of the blank, sterile room. Its occupant, a young woman, lay immobilised in a full body cast, reaching from her neck to her ankles. She looked to be sleeping, but that appearance was deceptive. She sighed and a smile came over her face as the neural transmitters took over, transporting her to her destination.
She was not in a hospital room. Not really. She was wandering along a narrow path through an ancient forest, the tall, widely spaced pines letting a cold wind bite deliciously at her skin. It was late summer, perhaps early autumn. She felt the bracken brush against her legs as she walked, heard the rustle of something moving on the slope to her right; from the movement of the ferns, she thought it might be a roe deer. There was the crack of a breaking twig and an antlered head rose, anxious. For four whole seconds, deer and human looked at each other, before the deer turned and slipped quietly over the crest of the small hill.
She continued her stroll, the pines thinning out even more. Birches became more frequent, their lower canopies giving a more claustrophobic feel to her surroundings. She could see brighter light ahead, though and could smell the heady scent of broom and gorse flowers. She was coming up to a clearing.
She stepped out into the open and found herself on a narrow border between the woodland and a steep cliff. Close to the edge, cowberries beckoned seductively. She could almost taste them, but knew that the price for such a sweet berry might be higher than she was willing to pay. Anyway, she had another reason for being there. She could feel the changes happening already. She ran forwards, jumped and plummeted, feeling the wind rushing past her body. She was transforming, her arms becoming wings, her body sleek and feathered. She soared. High above the forest, she found freedom.
It was exactly as she had programmed it to be. Soon, she would have to return to her hospital bed, but for a brief while she would get some relief from the monotony of being nothing more than a passive observer whilst her body healed.