Boughton expresses that his reflections on heaven are constantly evolving, suggesting a limitless curiosity about the afterlife. He feels inspired to imagine the beauty of existence and multiply it to enhance his vision of what heaven might be like. This contemplation suggests that his ideas about a spiritual realm are deeply tied to the appreciation of the world around him.
His mention of "splendors of the world" emphasizes that he finds joy and wonder in daily life, and this fuels his imaginative journey towards conceptualizing a divine place. By indicating he would amplify his thoughts if he had more vigor, Boughton reveals a yearning for greater understanding and perhaps a desperation in his pursuit of spiritual fulfillment.