Final answer:
The poem 'Excelsior' implies that the youth ascended to a spiritual realm, often interpreted as heaven, after death.
Step-by-step explanation:
The poem 'Excelsior' suggests that the youth ascended to a celestial or spiritual realm when he died. Phrases like 'to purer regions of celestial light' and 'when Love's red lips were cold and dry' indicate a journey beyond the physical world and into an ethereal, post-mortem existence. Additionally, themes of going to a 'happier world' after death are common in the era's literature, suggesting a transcendence to heaven or a similarly peaceful afterlife.