Okay. Thanks. An assertion that such contain grains of truth or partial truths, as implied here, doesn't amount to an endorsement. That was my point.
He didn't say "grains of truth" he said elements of goodness and grace received from Christ.
Therefore, the sacred books of other religions, which in actual fact direct and nourish the existence of their followers, receive from the mystery of Christ the elements of goodness and grace which they contain.
That sure sounds like an endorsement to me. Clearly the Pope is not condemning the religious books of other religions for the blasphemy and idolatry that they contain, but is instead praising them because they "in actual fact direct and nourish the esistence of their followers."
I assume that the Koran that the Pope kissed is among the books that he believed "in actual fact direct and nourish the existence of their followers".
That would appear to explain why he was so willing to publicly bow and kiss it.