This work focuses on the imaginary aspects of the embodied exploration of virtual matter. Thanks to a motion capture device and a real-time simulation system, modifications of bodily density can be experienced through a cloud-avatar. The mutual influence of the cloud behaviour and the user's action offers a great deal of freedom for expressive performances and creative interactions. It also provides a new mode of engagement in virtual images, allowing for the experience of a peculiar kind of dynamic reverie, which is virtually augmented and poetically enriched through the dialog with the cloud-matter.