I think there are counterfeits.. whether they are truly diabolical or not, I don't know. Sometimes I think they're just all-too-human and con-men. Either way, both of these would cause great harm.
But like I said, Christianity is not merely an intellectual or spiritless religion either.
More saint quotes (like Teresa's above):
For singers, either in the harvest, or in the vineyard, or in any other busy work, after they have begun in the words of their hymns to exult and rejoice, being as it were filled with so great joy, that they cannot express it in words, then turn from actual words, and proceed to sounds of jubilation. The jubilee is a sound signifying that the heart laboureth with that which it cannot utter…that the heart may rejoice without words, and the boundless extent of joy may have no limits of syllables. (Augustine of Hippo, c.354-c.430)
For the prophetical gifts remain with us, even to this present time. (Justin Martyr, c.150)
Now, it is possible to see amongst us women and men who possess gifts of the Spirit of God. (Justin Martyr, c.150)
In like manner we do also hear many brethren in the Church, who possess prophetic gifts, and who through the Spirit speak all kinds of languages, and bring to light for the general benefit the hidden things of men, and declare the mysteries of God. (Irenaeus, c.180)