The separation between the material and the spiritual was a big metaphysical error

 Russell Kirk (The Conservative Mind):

“A Purpose, a Will, emanates from God; this Will has created our humanity and guides us now in ways beyond our understanding, toward ends which even our reason cannot make out clearly. Providence acts through the instincts and intuitions of our feeble flesh. This being so, the man who takes the materialist, the mechanist, and the Utilitarian for his preceptors in the ends of life is a forlorn fool” – who facilitates rule by demagogues, I would ad.”

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Albert Einstein said “My religion consists of a humble admiration of the illimitable superior spirit who reveals himself in the slight details we are able to perceive with our frail and feeble mind.”

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Those statements affirm the Great Spiritual Blockade of the revealed religions which has enshrouded the material evolution of life to ascending levels of real Godhood for thousands of years. This has not stopped evolution, which moves inevitably in a pattern, even though it has its random elements---it is a pattern with a discernible direction, in spite of instances of stagnation and retreat, toward higher and higher more effective living forms, all the way toward ascending levels of Godhood.

The separation between the material and the spiritual was a big metaphysical error. There need not be that tension between the material and the spiritual just as there need not be tension between religion, science, and the political.

The evolutionary Outward Path to Godhood brings back the ideals of life and living, heroism, cultivating wisdom, strength, beauty, health, kinship and ethnic bonds, and harmony with life and nature; natural instincts can then be religiously appreciated and seen as vital because we evolve to Godhood by way of material evolution and successful survival and reproduction.

Theological materialism affirms an ordered, rational, material, evolution to supermaterial Godhood. We can attain real Godhood and affirm real religion, but it is a supermaterial Godhood evolved to in the material world---and religion, science, and the political, can aid us in that sacred goal.