Fr Zeee, the blogger bloggorum has posted a email he received recently of which I quote a portion...
...thinking that kneeling while receiving communion is no different from standing and receiving it in the hands because "Cogito, ergo sum; thus if I think I am reverent, I am" and sterilizing the Novus Ordo form of the mass of its sensory elements, physicality being essential to a sacrament. [M]ost in the Church simply don’t realize how scientism has stealthily poisoned the modern Catholic Church.
The great battle of the Church is against Cartesianism, it always has been so, ever since Eve dethroned God and placed herself at the centre of the universe and eat the fruit. The first commandment, telling us to have no god before God is anti-Cartesian because the god most of us want to place before God is ourself, "I".
Original sin is "I" centredness, Christ liberates us from "I" by commanding us to transcend self by loving God first and foremost and secondly our neighbour as ourselves.
All religions ultimately call us to move from "self" to "other", even stick worshippers. The sacrifice of Christ most perfectly fulfils all religion because it is the ultimate act of selfgiving.