The poem "In Memoriam" directly engages with the scientific advancements and theories of its time, such as geology and early evolutionary ideas. This engagement often leads the speaker to question:
ক) The existence of God and the purpose of human life.
Victorian Crisis of Faith: The mid-19th century, when Tennyson was writing, was a period of significant scientific advancements, particularly in geology and evolutionary theory, that deeply troubled many Victorians and challenged traditional Christian beliefs. This intellectual upheaval, combined with the personal trauma of losing his close friend Arthur Henry Hallam, forms the central spiritual conflict of the poem.
Geology and Deep Time: Charles Lyell's Principles of Geology (1830–1833) demonstrated that the Earth was far older than the 6,000 years suggested by biblical chronology. This concept of "deep time" is reflected in the poem, where Tennyson wrestles with the vast, seemingly random scales of geological history, as seen in the lines, "From scarpèd cliff and quarried stone".
Early Evolutionary Ideas: Pre-Darwinian ideas of evolution and extinction, such as those presented in Robert Chambers's Vestiges of the Natural History of Creation (1844), troubled Tennyson. He saw a universe where life and death were part of a brutal, indifferent natural process, famously captured in the phrase, "Nature, red in tooth and claw".
Searching for Meaning: These scientific ideas cause the speaker to question the ultimate purpose of human life and the fate of the individual soul in the face of a seemingly vast and uncaring universe. The poem documents Tennyson's struggle to find a way to hold onto his faith in a higher power despite scientific evidence that seems to contradict it. He questions whether humanity, "Man, her last work, who seemed so fair," will ultimately "Be blown about the desert dust, Or sealed within the iron hills?".
Reconciling Faith and Science: In the end, Tennyson does not fully abandon his faith. Instead, he finds a way to reconcile it with science, emphasizing the importance of faith over what can be empirically proven. As the speaker says, "'Believing where we cannot prove'". The poem ultimately argues for a kind of spiritual evolution, where humanity progresses toward a "One far-off divine event / To which the whole creation moves".