This is the ladder
of transmigration, the soul's pilgrimage from the earthly
existence to paradise. During the
sixteenth century was used to signify levels of
increased awareness, and is therefore also a synonym to the
alchemical symbol, the golden chain of Homer. Refer to the
section "Esoteric alchemy" in the Appendices.
Compare with , which is an ideogram carved in a rock face in Rio Majes valley in south Peru (see in Group 29 for more signs from the Rio Majes carvings).