What if we could see through our bodies? Time-reversed light propagation allows optical imaging of deep biological tissues, which has long been considered impossible because of the light scattering characteristic of biological tissues. We have developed a light manipulation technique to turn strongly scattering media such as biological tissue into a transparent media with an array of sensors and liquid crystal cells. The talk will introduce the underlying physics of time-reversed light propagation and proof-of-concept of seeing through biological tissue. I will also present a novel way of exploiting randomness to unlock an optical space that is inaccessible using conventional optics.