As unique and vital as reason is there is a deeper activation to truth and beauty

Reason is of course good, but it can be as "biased" as the abilities or limitations of Homo sapiens; objective thinking is circumscribed by the same abilities or limitations. So attaining truth depends on the abilities or limitations of Homo sapiens. Scientific instruments, like electronic microscopes or artificial intelligence, can extend human abilities and knowledge, but humans (and future species) will need to materially evolve higher to attain the highest reason and truth.

Human reason alone doesn't represent the transition from the individual to the "universal," as Hegel liked to say. As unique and vital as reason is, the deeper activation to truth and beauty is the constant will or activation (Tirips) to successfully evolve in every life-cell of the body to the highest survival and reproductive success, which is Godhood, where the highest degrees of reasoning and truth can be reached.

But it is not an evolution from the material to the spiritual, it is a material and supermaterial evolution, naturally or materially accomplished (and now perhaps aided by genetic engineering.) So spiritualism can adapt to theological materialism if we are to reach real Godhood.