This work has set on the query of how 'presence' could be understood. It is clear that what we see and feel does not happen in the present time, rather in the past time. That is because there must be a time span between pure material perception and recognition. And, this work focuses on what is happening in the time span. For an example of magma activiation before and after eruption, formless flow of lava under ground changes over time into a formed stone after eruption on the ground. We can see the form - stone clearly, only after it has already experienced non-directional vibration and color-deviation in transition between magma and stone. The transition is always happening with full of energy in the formless flow. 
So, this work contrasts between pure material perception and recognition, and consider the formless flow of energy as 'presence'. And it is burst out as color-deviative visualization and overlayerd vibration of sound in real-time.
This work is subject-oriented and takes a platform of interactive/ audiovisual intallation with a self-made digital algorithm connected with a USB camera, and a beam projector and 2ch loud speakers. It can be installed either indoors or oudoors. Flying insects, birds, human beings or whatever can be artistic material and, all the moving creatures sensored by this work express their energy - 'presence' for this work.