The final verse is probably more of a summary of his reign rather than coming from the perspective of Seti. Ramesses II wanted to be on the of the greatest pharoahs to ever have lived and ordered many monuments to be built in the name of his glory; he believed if he built enough of these monuments, neither he nor his ancestors would ever be forgotten.
For all he did and as powerful as he was, his reign did nothing to secure the future for the Egyptian Empire. Once he died the kingdom was open to attacks from several outsiders as well as subject to internal conflicts. In less than 200 years anything that he had accomplished had essentially been undone.
The final verse is probably more of a summary of his reign rather than coming from the perspective of Seti. Ramesses II wanted to be on the of the greatest pharoahs to ever have lived and ordered many monuments to be built in the name of his glory; he believed if he built enough of these monuments, neither he nor his ancestors would ever be forgotten.
For all he did and as powerful as he was, his reign did nothing to secure the future for the Egyptian Empire. Once he died the kingdom was open to attacks from several outsiders as well as subject to internal conflicts. In less than 200 years anything that he had accomplished had essentially been undone.