Final answer:
In the context where two old people are seated apart from a feast, thinking only of each other, 'retirement' means a state of seclusion or being withdrawn into a personal space of intimacy and reflection.
Step-by-step explanation:
The term retirement as used in the sentence 'I was shrined in double retirement' suggests a state of being withdrawn or secluded from the activity and bustle of the world. The phrase seems to evoke imagery of a peaceful and introspective retreat, perhaps indicating a deeper level of solitude or contemplation where individuals are disconnected not just from society but also from more immediate surroundings. Given the context provided where two old individuals are absorbed in their own world, ignoring the feast and reveling in each other's company, 'retirement' connotes a fostering of intimate connection in a secluded, personal space.