Even today many educated people think that the victory of Christianity over Greek philosophy is a proof of the superior truth of the former - although in this case it was only the coarser and more violent that conquered the more spiritual and delicate. So far as superior truth is concerned, it is enough to observe that the awakening sciences have allied themselves point by point with the philosophy of Epicurus, but point by point rejected Christianity.
In our definitions, we grope after the spiritual by describing it as invisible. The true meaning of spiritual is real; that law which executes itself, which works without means, and which cannot be conceived as not existing.
True religion is a universal and (necessarily) ego-transcending psycho-physical motivation of human beings. However, up to the present stage in human history, only relatively few individuals in any generation have been willing and able to make the gesture that is true religion (or, otherwise, true esotericism). In their great numbers, most people have, up to now, never yet been ready or willing to adapt to the true (and progressive) practical, moral, devotional, Spiritual, and Transcendental Wisdom-culture of right life.
Freedom will destroy itself if it is not exercised within some sort of moral framework, some body of shared beliefs, some spiritual heritage transmitted through the Church, the family, and the school.
I have found both freedom and safety in my madness; the freedom of loneliness and the safety from being understood, for those who understand us enslave something in us.