Today's technology is dependent on electricity to fuel it. At the same time, electricity creates desire, for there are obvious reasons why people want to possess more of it. In short, electricity symbolizes dependence and desire. Rain is simply associated with depression. More often than not, a person who is depressed will relate to the rain, which is cold, dark, and dreary.
Rain can also symbolize security, however.
When you are in a sheltered environment away from the soaking rain, one feels secure away from this negative element. So, rain summarizes depression and security well. Electricity and rain can be taken even further, however. A storm can certainly destroy anybody's plans for that day. A storm can cancel outdoor events, such as sports or a barbecue.