The work uses virtual reality and non-linear sound composition technologies to poetically explore the presence of human beings in their environment. By wearing the headset, the viewer is immersed in a forest generated by point cloud data, which evolves according to their observational attitude and type of attention they give to it.The experience begins in a virtual environment swept by wind, snow and fog. If the viewer moves slowly, the wind dies down and the fog dissipates. Various noises gradually emerge: a gurgling stream, a flutter of beating wings, a crackle or the rustle of dry grass underfoot. The more still the viewer becomes and simply observes, the more the micromovements of the forest become perceptible and multiply. Sounds and animals seem to come closer, birds appear, a woodpecker drums on a tree... This peaceful environment full of delicate details collapses as soon as the observer makes a sudden gesture. Then the storm returns, leaving only the fading shadows of volatile particles