You might be interested in the book " No Abode, The Record of Ippen" then. Ippen was a Japanese pure land practitioner who was influenced by Honen and and Shoku but who also received inka as a Zen Master . I've found his writings very inspirational. Right up there with Shinran and Honen and I'm not quick to say anything like that. I'm on my third read through of the book now.
"Make no judgments about the nature of your heart and mind. Since this mind is delusional, both when it is good and when it is evil, it cannot be essential for emancipation. Namu Amida Butsu itself is born.
When ten [kalpas past] and one [thought moment] are nondual, we realize no-birth
Where land and realm are the same, we sit in Amidas great assembly.
After the one thought moment in which realizing the transience of birth and death in our own flesh we once genuinely and directly entrust ourselves through saying Namu Amida Butsu, the self is no longer the self. Then, as our hearts are Amida Buddha's heart, our bodily actions Amida Buddha's actions, and our words Amida Buddha's words, the life we are living is Amida Buddha's life.
Birth is the first thought moment [of taking refuge in the Name], the term "first thought moment," however, still implies the perspective of the practicer; from the very beginning, Namu Amida Butsu itself is birth. This birth is no-birth. The point at which a person encounters this Dharma [of Namu Amida Butsu] is provisionally called one thought moment. When a person has returned to and entered the Name, which cuts of all past, present and future, birth is without beginning and without end."
See good ol wikipedia:
Ippen's doctrine was primarily influenced by Shōkū, founder of the Seizan branch of the Jōdo-shū, who "insisted that the various Buddhist practices contain no more than a portion of the merit of the single practice of the nembutsu and serve merely to lead people to recite the nembutsu." However he was also strongly influenced by the non-dualism of Zen and even received inka (a seal of recognition) as a Zen Master from Roshi Kakushin.