4 is the first number in the cycle of giving things shape. It's about making things real. The element of Swords also relates to making things real, so this enhances the effect so much that arrogance can cause you to exhaust yourself.
Right now you probably could use some rest. It doesn't mean you should fall asleep, but both your body and your mind can use some rest before embarking on the next steps.
Learn to trust the signals your own body sends you. If you need rest, take rest soon. Don't work yourself into a burnout.
You might have been asking too much of yourself lately. Take a rest now or face true exhaustion just a little later.
You've rested enough, it's time to get back to work.