He observed these alchemical images occurring during the psychic process of transformation, a process that Jung called "individuation."
hiː əbzˈɜːvd ðiːz ælkˈɛmɪkəl ˈɪmɪdʒᵻz əkˈɜːɹɪŋ dˈʊɹɹɪŋ ðə sˈaɪkɪk pɹˈɑːsɛs ʌv tɹænsfoːɹmˈeɪʃən, ɐ pɹˈɑːsɛs ðæt jˈʊŋ kˈɔːld "ˌɪndᵻvˌɪdʒuːˈeɪʃən."