What is the spiritual meaning of the aurora?

My friend, you ask about our sun.

The sun does not shine the same to us as with you, but emits a glorious halo that envelops all our scenery with an auroral light of warmth, which is more genial because the rays are not so strong and forcible and our scenery is not so marked, but we have changes, which are beautiful, giving us a variety of seasons, which are marked by departure and return of numerous spirits who are exploring the different regions of the Summerland.