Arcana Coelestia #4123
4123. 'For seven days' means the holiness of truth. This is clear from the meaning of 'a way' as truth, dealt with in 627, 2333, and from the meaning of 'seven' as holiness, dealt with in 395, 433, 716, 881. Here the meaning is that there was an intense desire to be joined, that is, to join itself to the holiness of truth:
Arcana Coelestia #881
881. 'Seven' means that which is holy because now charity is the subject. This is clear from the meaning of the number seven, dealt with already in 395, 716. Furthermore 'seven' has been brought in here so that all things may be linked together as though they were historical events, for in the internal sense 'seven' and 'seven days' contribute nothing more to the meaning than a certain holiness which this second state possesses from what is celestial, that is, from charity.