There is more than one convention
Palmistry does not have one universally followed rule for choosing a hand. Some approaches compare a dominant hand with a non-dominant hand; others assign meanings to left and right. Cheiro’s Palmistry for All, for example, gives a fixed left/right interpretation. Such a convention is part of an interpretive system, not a biological test of which palm holds the truth.
For a simple notebook exercise, choose the hand you can see and photograph clearly. Write down which one you used. If you later compare the other, note the differences without deciding that one version predicts a better future.
If you use a dominant-hand approach
Your dominant hand is generally the one you prefer for skilled everyday tasks such as writing. A left-handed reader need not borrow a right-handed example unchanged. People can use different hands for different activities, so the label may need a short explanation in your notes.
Some symbolic approaches use the dominant hand to discuss current choices and the other as a contrasting perspective. If you adopt that framework, name it as a convention. Neither hand proves inherited traits, a past life or a fixed destiny.
A left-handed worked example
Suppose you write mainly with your left hand. You photograph that hand, label the note “left; writing hand” and describe the three main creases. You then choose one reflection question from a line guide and answer it using your own experience.
If you photograph the right hand later, record it separately. A different crease or a different reading passage does not mean the first hand was wrong. Hand variation, light, pose and the reader’s measurement boundaries can all affect what is observed.
What the photo reader accepts
PalmRead accepts one hand at a time, with the palm facing the camera, fingers naturally apart, fingertips and some wrist visible. The measurement code can normalize an outline with the thumb on either side. You do not need to mirror a photograph manually to match the illustration.
The reader does not identify your dominant hand, label inherited versus acquired traits, or combine two hands into a comparison. Choose a clear image and follow any retake guidance. Your photo stays in browser memory; no AI reading service receives it.
Compare observations without predictions
Use the same light, camera distance and relaxed hand position if you keep your own comparison notes. Name only what you can see, such as a central crease looking more curved. Keep a symbolic association on a separate line.
Start with the illustrated guide if you are unsure which crease you are following. A useful reading can end with one question and a practical action; it does not need to settle which hand is more important.
Palmistry is for entertainment and self-reflection, not scientific assessment or prediction.
Source and scope
Cheiro, Palmistry for All (1916), chapter XVII: Right and Left Hands. One historical example of a fixed left/right convention. Its claims about heredity, the brain and prediction are historical beliefs, not scientific evidence or PalmRead’s measurement rules.
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