From Barry Lopez’s Arctic Dreams:

The aurora borealis, pale gossamer curtains of light that seem to undulate across arctic skies, are transfixing in part because of their diffidence. “It is impossible to witness such a beautiful phenomenon without a sense of awe,” wrote Robert Scott, the British Antarctic explorer, “and yet this sentiment is not inspired by its brilliancy but rather by its delicacy in light and colour, its transparency, and above all by its tremulous evanescence of form. There is no glittering splendour to dazzle the eye, as has been too often described; rather the appeal is to the imagination by the suggestion of something wholly spiritual….”

It is unusual in the literature of exploration to find a strictly consistent reaction, but virtually everyone who wrote down his thoughts about the aurora described, first, the inadequacy of his language and, second, a pervasive and stilling spiritual presence.