Everything. Light is a social topic that covers everything: man’s best friend, the sun, reflections, shadows. Light has been converted into a responsibility, light regains spaces, beautifies, shows defects. Without light, nothing functions. What is your best lighting design and why?The San Felipe de Barajas Castle in Cartagena, which I did with Philips. It was a huge responsibility, and you don’t often get the chance to illuminate such an iconic building.