Start by turning on the device by pushing the control button five times. After it starts up, you will start to get haptic feedback and the device will be in the smartpath mode. This is the feature DaVinci has created by increasing the temperature slowly over the initial 8 minutes as your session goes on.
With this comes different levels that all have different temperature ranges. It offers the Flavor level, which is the lowest heat and goes up each level after. The other levels are Mind, Body, and Rest. Rest being the hottest level of them all.