In just a few lines, the speaker looks at retirement as a second chance. The opening image is a sun "for myself," which suggests time that finally belongs to the speaker alone, no longer given over to work or other people's demands. But the next line adds a sting: this sun is a "pie of a life I never tasted." Retirement is sweet, yet it also reminds the speaker of everything they missed along the way, the slices of life that went uneaten.
Then the tone shifts. "I am captain" is a confident, almost proud statement, and the speaker sets sail like someone taking control at last. Still, the destination is "the farewell chance," a phrase that mixes hope with finality. It's a last opportunity, and the speaker knows it. The mood is a blend of regret, quiet determination, and bittersweet freedom: the voyage is the speaker's own, but it is probably the final one.