stˈeɪdʒ wˈʌn ɪz ˈɪmɪdʒ dʒˌɛnɚɹˈeɪʃən, wˌɪtʃ ɪnvˈɑːlvz dʒˈɛnɚɹˌeɪɾɪŋ mˈɛntəl ˈɪmɪdʒɹi fɹʌm mˈɛmɚɹi, fˈæntəsi, ɔːɹ ɐ kˌɑːmbᵻnˈeɪʃən.
Stage 1 is image generation, which involves generating mental imagery from memory, fantasy, or a combination.