“Eliot’s poetry … is driven by a scepticism which resolutely asks the question but refuses to stop short at it, by a sensibility sharply aware of ‘the disorder, the futility, the meaninglessness, the mystery of life and suffering.’ If it attains a world of belief or a conviction of order, that conviction is won against the attacking strength of doubt and remains always subject to its corrosive power. Not all of us share Eliot’s faith. But all of us can accept the poetry because nearly every line of it was written while looking into the eyes of the demon.”

In 1921 Conrad Aiken … wrote; “… Mr. Eliot himself is forever abandoning us on the very doorstep of the illuminating.”

https://www.poetryfoundation.org/poems-and-poets/poets/detail/t-s-eliot