Joseph in his highest meaning represents the life of Jesus. He also represents the state of knowing truths and using them to do good. This is phrased in many of the attached references as the celestial of the spiritual, or the good of truth, which is the good that is done because we know truths that are our guides to life.

(Референце: Arcana Coelestia 3969, 4607, 4669, 4682, 4741, 4988, 5036, 5094, 5249, 5316, 5876, 5890, 5974, 5975, 6275, Genesis 30, 30:24, 30:25)

5974. 'Enough; Joseph my son is still alive' means joy that the internal had not perished. This is clear from the representation of 'Joseph' as the internal celestial, and from the meaning of 'being alive' as not having perished or been cast away, as above in 5967. That joy is meant is self-evident.