If art is subjective, how can it convey objective truth?

Beat Rink is a theologian (and ordained Rev. of the Swiss reformed church) and studied linguistics, literature and history. He has published several books - also his poetry.  He leads leads Crescendo International together with his wife Airi, which they founded in 1985. Crescendo is a Christian movement of and with professional musicians and music students, and other artists. They cooperate with cultural institutions and all Christian churches. The international office is in Basel, Switzerland. Crescendo is part of the Swiss interdenominational movement (and association) Campus für Christus / Agape Europe / Cru.