We conduct a physical mixed reality project, in which we can deal with digital existence as physicalcounterpart by using mixed reality technologies and tangible interfaces. The digital entity can be adigitized or synthesized object, mathematical formula, computational algorithms, or simulatedartificial life. We provide physical interface for interacting with the digital substance in natural way.Now, people can deeply dream of virtual, digital or conceptual things in physical way while waking.Users can expand their experience with the physical mixed reality devices, with which they canphysically touch, feel and share the digital entity in the real world. People can not only imagine ordream of virtual lifeforms, but also they can make their own artificial life, and test the algorithmsphysically, through the seamlessly mixed environment of physical and digital space. People willlearn about life cycle of small virtual lifeforms or a virtual ecosystem in the small world on thedevice. The simulated behavior of artificial life occasionally presents chaotic and aestheticscenery. We intend the devices to be a creative tool which stimulate people to improve motivationof learning, dreaming and thinking about the nature and human.