The Eternal tarot spread clarification

Hello,

I bought the Ethernal Tarot because I saw it in a dream before I knew existed. I used it for a reading the first time today, and the major arcana that I drew match the dream that I had ( I saw the empress and Anubis which here is the Hierarch)

I followed the instructions here
https://glorian.org/books/the-eternal-tarot

I couldn’t find information on your website about how to read the first major arcana card. I understand that the 2 minor arcana are clarifications for the prediction (second major arcana) But what is the significance of the first major arcana card in the reading?

Thanks so much in advance for your help!