The double letters each have two sounds, hard and soft. They are also unions of opposing principles:
| Letter | Hermetic | Gra |
|---|---|---|
| Beth (ב) | life and death | wisdom and folly |
| Gimel (ג) | wisdom and folly | riches and poverty |
| Daleth (ד) | peace and evil | fertility and desolation |
| Kaph (ך, כ) | riches and poverty | life and death |
| Peh (ף, פ) | grace and ugliness | rule and servitude |
| Resh (ר) | fertility and desolation | peace and evil |
| Tau (ת) | rule and servitude | grace and ugliness |
See more about the double letters or the Alef-Bet.