ðɪs bˈʊk ɪz pɚtˈɪkjʊlɚli sɪɡnˈɪfɪkənt fɔːɹ hˌɪm, ˌæzɪtˌɪz ɐn ɐmˌælɡɐmˈeɪʃən ʌv hɪz juːnˈiːk aɪdˈiəz ænd θiːəlˈɑːdʒɪkəl vjˈuːpɔɪnts æt ðɪ ˈeɪdʒ ʌv twˈɛnti wˈʌn.
This book is particularly significant for him, as it is an amalgamation of his unique ideas and theological viewpoints at the age of 21.