Rappresentavanlo tuttora giovane per significare, che non s' invecchiava
mai, nè s' indeboliva cogli anni." _Storia Antica di Messico_, Lib. vi, p.
7.]

The name "Tezcatlipoca" is one of odd significance. It means The Smoking
Mirror. This strange metaphor has received various explanations. The
mirrors in use among the Aztecs were polished plates of obsidian, trimmed
to a circular form. There was a variety of this black stone called
_tezcapoctli_, smoky mirror stone, and from this his images were at times
made.[1] This, however, seems too trivial an explanation.

[Footnote 1: Sahagun, _Historia_, Lib. ii, cap. xxxvii.]

Others have contended that Tezcatlipoca, as undoubtedly the spirit of
darkness and the night, refers, in its meaning, to the moon, which hangs
like a bright round mirror in the sky, though partly dulled by what the
natives thought a smoke.[1]

[Footnote 1: _Anales del Museo Nacional_, Tom. ii, p. 257.]

I am inclined to believe, however, that the mirror referred to is that
first and most familiar of all, the surface of water: and that the smoke
is the mist which at night rises from lake and river, as actual smoke does
in the still air.

As presiding over the darkness and the night, dreams and the phantoms of
the gloom were supposed to be sent by Tezcatlipoca, and to him were sacred
those animals which prowl about at night, as the skunk and the coyote.[1]

[Footnote 1: Sahagun, _Historia_. Lib. vi, caps. ix, xi, xii.]