From Fr. Stephen a while back:
The life we are called to live as Christians is not one long argument with the voice of secularism. The voice of secularism is not the sound of our own doubt, but the voice of the evil one. He has always been a liar.
The essential question for us is clearly stated by St. John:
By this you know the Spirit of God: Every spirit that confesses that Jesus Christ has come in the flesh is of God, and every spirit that does not confess that Jesus Christ has come in the flesh is not of God. And this is the spirit of the Antichrist, which you have heard was coming, and is now already in the world. (1Jo 4:2-3)
It is the question of Christ’s incarnation – but, in turn, it is also the question: “Is the flesh capable of bearing the Spirit?” Do we live in a world that is capable of God? There are many, who have partaken of a semi-gnostic spirit within modern secularism, who are not comfortable with Spirit-bearing material. Christ is someone whom we have fenced off, demarcated as a unique event such that He alone bears Spirit. He is the God who became incarnate in a world that was, by nature, secular. His incarnation would thus be a sign that does not confirm the world in any way, but by its very coming condemns all flesh.
This, according to St. John, is the spirit of the Antichrist. It is as though the evil one had said, “Fine. Take the flesh of this child born of Mary, but everything else is mine, and tends towards nothing.”
The Incarnate Christ is not only God with us, but reveals the true reason for all creation. “Heaven and earth are full of Thy glory.” Nothing is merely anything. Everything bears the glory of God.
Thus my “spirituality” is to learn how to live in a material world that is everywhere more than I can see or know. For such a life I need a guide. Without a guide I am left to the devices of my own imagination. My parents were not raised in such a situation. They were not teachers in this matter. It is the life of the Church, the way of knowledge that is the lives of the saints that teaches me how to live. They help me eat (or not eat) in a manner that reveals God. They teach me to read, to honor icons, to forgive enemies, to hold creation in its proper, God-given place. I am an Orthodox Christian. Who else remembers how to live in the world, holding that Christ is come in the flesh?