Mithra is the yazata of covenant, oath, and the light that sees all agreements kept or broken. He is not the sun but the light by which truth is visible — the divine witness to every promise. His name literally means 'contract.' Hex 13 (Fellowship of Men) is Mithra's social function: fire over heaven, the gathering of people under a shared principle. 'Fellowship with men in the open — success.' Mithra demands that fellowship be open, not secretive. Hex 61 (Inner Truth) is Mithra's perceptive function: wind over lake, the truth that penetrates opacity. 'Inner truth reaches even pigs and fishes.' Nothing escapes Mithra's sight. He has ten thousand eyes and ten thousand ears. Both hexagrams insist that genuine community and genuine truth require transparency — the covenant that is not hidden.