Question:
"Amida attained Buddhahood for all of us when he became Enlightened. 'Shinjin' is simply the realisation of that fact with total conviction which in turn compels us to recite in thanksgiving "Namo Amidabutsu" ("Namo Amitofuo"). I wonder if it contradicts Jodo Shinshu".
Answer:
Shinjin (faith) is NOT only the realisation of the fact that Amida attained Buddhahood. Of course, Amida did attained Buddhahood in order to save us all, but this is not enough. All Buddhas attained Buddhahood and wish to save us, but this does not mean that sentient beings are saved just because Buddhas are Enlightened. We must follow the method prescribed by each Buddha if we want to attain Enlightenment ourselves. So, Amida Buddha made His Primal Vow in which He said we should entrust to Him, say His Name in faith and wish to go to His Pure Land.