To continue our study of this amazingly accurate, as well as exquisitely beautiful, psychological record:--the poet goes on to tell us that these sensations sweet are “felt in the blood and felt along the heart,” a statement curiously true to fact, for a pleasurable sensation causes the relaxation of the infinitesimal nerve fibres netted around the capillaries, the blood flows freely, the heart beats quicker, the sense of well-being is increased; gaiety, gladness supervene; and the gloom of the dull day, and the din of the busy city, exist for us no more; that is to say, memories of delight are, as it were, an elixir of life capable, when they present themselves, of restoring us at any moment to a condition of physical well-being. But even this is not the whole. Wordsworth speaks of these memories as “passing into my purer mind with tranquil restoration”--purer because less corporeal, less affected by physical conditions, but all the same so intimately related to the physical brain, that the condition of the one must rule the other. Mind and brain perhaps have been alike fagged by the insistent recurrence of some one line of thought, when suddenly there flashes into the “purer mind” the cognition of images of delight, represented in consequence of a touch to some spring of association: the current of thought is diverted into new and delightful channels, and weariness and brain fag give place to “tranquil restoration.” If mere sensations are capable of doing so much for our happiness, our mental refreshment, and our physical well-being, both at the time of their reception and for an indefinite number of times afterwards, it follows that it is no small part of our work as educators to preserve the acuteness of the children’s perceptions, and to store their memories with images of delight.