The Iliad (Ἰλιάς) is an ancient Hellenic epic poem, traditionally attributed to Homeros. It's set during the Trojan War, the ten-year siege of the city of Troy (Ilium) by a coalition of Hellenic states, it tells of the battles and events during the weeks of a quarrel between King Agamemnon and the warrior Achilles. Although the story covers only a few weeks in the final year of the war, the Iliad mentions or alludes to many of the Hellenic legends about the siege; the earlier events, such as the gathering of warriors for the siege, the cause of the war, and related concerns tend to appear near the beginning. Then the epic narrative takes up events prophesied for the future, such as Achilles' imminent death and the fall of Troy, although the narrative ends before these events take place. However, as these events are prefigured and alluded to more and more vividly, when it reaches an end the poem has told a more or less complete tale of the Trojan War. Over the course of the story, many Gods are invoked and petitioned, and I'd like to collect some of these invocations here today, for use in your own rites.

An invocation is a request for the spiritual presence and blessing of a deity during a rite. To invoke is to call upon earnestly, so an “invocation” in the context of prayer is a serious, intentional calling upon a God or Goddess. In Hellenic ritual, it's common for prayers of invocation to be offered every time a new deity is invoked, so we can be sure They will the hymns and prayers of petition offered to Them. Invocations fit into the rite like so:

- Lighting of the incense burner with frankincense
- Invocation to Demeter: Khaire Demeter, you who taught us to work the earth and provides for us so bountifully… 
- Libation of a kykeon and sacrifices
- Orphic Hymn 40 To Eleusinian Demeter
- Prayers

"O god of the silver bow, that protectest Chryse and holy Cilla, and rulest Tenedos with thy might..."
"Hear me O king from your seat, may be in the rich land of Lycia, or may be in Troy, for in all placesyou can hear the prayer of one who is in distress, as I now am..."

"Hear me, daughter of aegis-bearing Zeus, unweariable..."
"Holy Athena, protectress of [Athens], mighty goddess..."
"Hear me, daughter of aegis-bearing Zeus, you who spy out all my ways and who are with me in all my hardships; befriend me in this mine hour..."

"I call the Erinyes who dwell below and take vengeance on him who shall swear falsely..."

"Oh Sun, that seest and givest ear to all things, Earth and Rivers..."

"Zeus, most glorious, supreme, that dwellest in heaven, and ridest upon the storm-cloud..."
"Father Zeus that rulest in Ida, most glorious in power..."
"Zeus, most great and glorious, and ye other everlasting gods..."
"King Zeus, lord of Dodona, god of the Pelasgi, who dwellest afar, you who hold wintry Dodona in your sway, where your prophets the Selli dwell around you with their feet unwashed and their couches made upon the ground- if you heard me when I prayed to you aforetime, [...]vouchsafe me now the fulfilment of yet this further prayer..."