How small the cosmos {a kangaroo's pouch would hold it}, how paltry and puny in comparison to human consciousness, to a single individual recollection, and its expression in words!
Nabokov reflects on the vastness of human consciousness in contrast to the smallness of the cosmos. He suggests that even something as seemingly insignificant as a kangaroo's pouch is trivial when compared to the depth and richness of a single person's memories and thoughts. This highlights the idea that the mind's experiences far outweigh the physical universe's expanse.
The author emphasizes the uniqueness of personal recollection, illustrating how each individual's memories can embody a profound complexity and significance. This perspective elevates human consciousness, asserting that our thoughts and expressions in words hold a greater value than the expansive cosmos, revealing the intimate power of human experience.