Sometimes resting and doing nothing is the ultimate challenge.
Activity can be a habit that is very difficult to break.
There is always so much to do, and modern society beguiles us with its attractions and distractions. The result is we forget to stop and be still. In readings, the Four of Swords is often a sign that you need to slow down and get some rest. If you are recovering from an illness, allow yourself quiet time to heal. Even if you feel completely healthy, you are risking getting sick if you don't take a break.