익(益) — 바람 위에 우레. 바람과 우레가 서로를 증익한다. 지금은 성장의 좋은 때. 단, 증가는 바른 도에 써야 한다.
효별 해설
초효：利用为大作，元吉无咎。 Favorable for great undertakings — supremely auspicious; no harm. When strength increases, pursue grand plans.
이효：或益之十朋之龟，弗克违，永贞吉。王用享于帝，吉。 Offered a tortoise worth ten strings — cannot refuse; eternal uprightness brings good fortune. The king uses it to honor Heaven. Use increase for righteous purpose.
삼효：益之用凶事，无咎。有孚中行，告公用圭。 Using increase to handle misfortune — no harm. With sincerity on the middle path, report to the duke with jade tablet. Use growth to face crisis.
사효：中行，告公从，利用为依迁国。 Walking the middle path — reporting to the duke who heeds. Using increase to relocate the capital. Use growth for major decisions.
오효：有孚惠心，勿问元吉。有孚惠我德。 Sincerity benefits hearts — without asking, supremely auspicious. Sincerity enriches my virtue. True increase wins hearts.
상효：莫益之，或击之，立心勿恒，凶。 None come to increase but some come to strike — unsteady heart; danger. In adversity, wavering resolve invites failure.