A voice may be raised to protest that that is too vaguely generalized; and if so, the protestant may turn for more precise evidence to such poems as "Trinity Sunday" and "The Devourers." There he will perceive, after a moment's reflection, the store of modern knowledge—of actual data—which has been assimilated to the mystical element here. Let him consider, for example, the first two stanzas of "The Devourers," and other similar passages:

Cambridge town is a beleaguered city;
For south and north, like a sea,
There beat on its gates, without haste or pity,
The downs and the fen country.

Cambridge towers, so old, so wise,
They were builded but yesterday,
Watched by sleepy gray secret eyes
That smiled as at children's play.

It is clear that the knowledge really has been assimilated—it is not a fragmentary or external thing. It is absorbed into the essence of the work and will not be found to mar its poetic values. But by a hint, a word, a turn of expression or a mental gesture, one can see that learning both scientific and humane (a significant union) has gone into the poetic crucible. There are signs which point to a whole system of philosophy: there is an historical sense, imaginatively handling the data of cosmic history; and there are traces which lead down to a basis in geology and anthropology. Yet these elements are, as I said, perfectly fused: it would be difficult to disengage them. And inimical as they may seem to the very nature of mysticism, they are constrained by this poet to contribute to her vision of a world beyond sense.

From this point of view "Trinity Sunday" is the most important poem in the book. It records an experience which the mystic of another age would have called a revelation, and which he would have apprehended through the medium of religious emotion. But this poet attains to her ultimate vision through the phenomena of the real world, apprehended in terms of the ideal. The warm breath of Spring, rich with scent and sound of the teeming earth, stirs it to awakening. But though she is walking in familiar Cambridge with, characteristically, the scene and time exactly placed: though friendly faces pass and cordial voices give a greeting, all that suddenly shrivels at the touch of the wild earth spirit. Space and time curl away in fold after fold; and with them pass successive forms of strange life immensely remote. But even while reality thus terribly unfolds, it is perceived to be the stuff of the world's live brain; to have existence only in idea.

And the fens were not. (For fens are dreams
Dreamt by a race long dead;
And the earth is naught, and the sun but seems:
And so those who know have said.)

Thus the facts of science have gone to the making of this poem, as well as the theories of an idealist philosophy. It is through them both that imagination takes the forward leap. But neither the one nor the other can avail to utter the revelation; and even the poet's remarkable gift of expression can only suffice to suggest the awfulness of it.

So veil beyond veil illimitably lifted:
And I saw the world's naked face,
Before, reeling and baffled and blind, I drifted
Back within the bounds of space.