Platonism/Aristotleanism is for the birds, for this is not the way to know God, if you wish to know God, purify your heart through prayer.
Our Lord Jesus Christ said, "Blessed are those who are pure in heart, for they shall see God."
How do you explain color to be blind person? You can't. It is something you have to experience.
Indeed, experience is important in the faith, but how do you pass it on. When you're children are learning their faith, do you just tell them - "it's a feeling and all about experiencing God" and absolutely nothing else. Do you just let them free to try and feel their way to truth? Of course not, you teach them the faith.
Now, how do we explain the faith - teach it to others? How did the Fathers decided to word the Creed (other than by the guidance of the Holy Spirit)? They based their understandings off of philosophy - in that day, it was Platonism (whether it was purely Platonism or Neo-Platonism is a matter of scholarly debate). There is no way to posit a theological truth without a philosophical base underneath.
One of the reasons the early Fathers choose Platonism was because it was so popular. They wanted to use a system that would reach the widest audience. That was part of their preaching to the world, by using the understandings of the world. Of course, they modified areas in Platonism that were opposed to Christianity (as they did in Aristotleanism), but the basic understanding is there. The best way to describe the actual system is "Christian Platonism".