Feast of Mary, Martha & Lazarus, Companions of Our Lord Ideological notions are strongest amongst people who have lost their traditional religious faith, and they provide a kind of pseudo-religion to take its place. Ideology may well be defined as religion-substitute. The fact that religious faith expresses itself in the particular ideological forms current in any given period is no reason why we should confuse religion with ideology; and, even though it requires a penetrating and candid investigation to distinguish between the genuinely religious and the merely ideological elements in the outlook of a particular period or individual, this does not mean that religion itself is an aspect of ideology. The core of religious belief is not ideological, whatever may be said of the soft pulp in which it is wrapped up.