This night was absolutely my favorite during my trip to Tromso in Northern Norway.

"The sight filled the northern sky; the immensity of it was scarcely conceivable.
As if from Heaven itself, great curtains of delicate light hung and trembled.
Pale green and rose-pink, and as transparent as the most fragile fabric,
and at the bottom edge a profound and fiery crimson like the fires of Hell,
they swung and shimmered loosely with more grace than the most skillful dancer."

- Philip Pullman, The Subtle Knife -