This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
A finger entry records how Western chiromancy, the tradition of reading character and fate from the shape and lines of the hand, assigns each of the five fingers to one of the classical planets by way of the mount, the fleshy pad, at its base, the index to Jupiter, the middle finger to Saturn, the ring finger to the Sun or Apollo, the little finger to Mercury and the thumb read separately under its own distinct tradition, and reads a finger's shape and the mount beneath it for the planet's own astrological character carried across to the hand.
An entry also records where a finger carries a separate elemental or gestural meaning outside Western chiromancy, an association with a specific element in yogic and Buddhist mudra practice, or its role in a specific named hand seal or gesture, such as the gesture of knowledge formed by joining the index finger and thumb, keeping this second tradition's own vocabulary and logic distinct from the planetary reading rather than merging the two into one account.
An entry names its documented textual sources by period, Johann ab Indagine's own sixteenth century chiromantic text among the earliest printed statements of the planetary finger scheme, distinct from the nineteenth century French systematization that later gave the practice much of its modern vocabulary.