What is the experience of hiking in the desert for three days?

I have never walked, but I have been to the desert. The first time I entered the hinterland of the desert was in 2009. I crossed the Taklimakan Desert in Xinjiang. In retrospect, the biggest impression I got last time was that the desert was not a sea of death, not impassable, and the difficulty was not as great as I thought. One of the most important reasons is that the desert highway in Taklimakan Desert is built for Tazhong Oilfield, and the whole highway is asphalt. In other words, the ordinary Santana car is not upside down, and it is no different from riding a roller coaster. It can also cross smoothly and shuttle between sand dunes. Sometimes we climb at full power, sometimes we dive in weightlessness, and sometimes we spin sideways. We sit in the car, up and down, back and forth, experiencing the impact and stimulation from 360 degrees.