Towers are tall.
The Tower card is usually associated with sudden chaos, a surprise big event. It makes a sort of practical, real world sense. Tall buildings and trees are more prone to lightning strikes, so it stands to reason that a tower would be a good symbol for a bolt from the blue, literally and figuratively.
Tarot doesn’t predict the future any better than it can predict where, precisely, lightning will strike during the next thunderstorm. But, like life, Tarot can suggest what to do when it does.
Towers are tall. You can climb them to get big picture understanding of the landscape around you.
Maybe during the lightning strike, a tower isn’t a great place to be. But if you re-climb the tower and get the biggest picture possible, it can help you get your head around the chaos afterward.
Sage Words Tarot 