(Rev Zuio Inagaki's translation)
It is Amida’s Vow-Power that enables you to attain birth in the Pure Land, but his Vow-Power is free of any attachment. So while Amida does everything for our birth, he is completely unattached. Normally you expect something like, “Amida does everything for our birth.”
It's sentient being that's truly ignorant in this case. We are unthankful to Amida Buddha for his perfect arrangements or "designs."