Spin Set as Coherence Disclosure Chirality Helicity and Mass Sections 174 through 177

Chirality and helicity connect through the relativistic equations of motion. To extend our spin taxonomy beyond spatial rotations, we examine a free Dirac particle and derive how its mass and momentum determine its chiral components. The calculation gives a precise correspondence, including its massless limit, while showing why shared rotational behavior cannot identify all spin-related structures. The Dirac representation and mass remain physical inputs.