To wrap my mind around it, I try to imagine astronomical objects as everyday objects. For example, if Sun was a base-ball in my hand, the earth would be a mote

To wrap my mind around it, I try to imagine astronomical objects as everyday objects. For example, if Sun was a base-ball in my hand, the earth would be a mote of dust some throwable distance away. My favorite one is: if Sun was the size of a grain of sand, the nearest start would be another grain of sand 30 kms away!