When the Tower card is upright in a Tarot reading, it represents a sudden, massive change. You will have to abandon the past, which may mean the loss of money, security, or short-term happiness. This means a period of upheaval, but you can take advantage of the catastrophe. Build something better where your old tower stood.
When the Tower card is reversed in a Tarot reading, it means that you are stuck in a rut or trapped in a bad situation. You need to shake things up. You probably know this, but you have been procrastinating about making a big change. Take a hard look at habits and traditions that you've been following unquestioningly. Ask yourself how they are holding you back. What can you throw away to make room for something better?