Find the turn of sonnet 73. what is its logical relationship to what comes before

The line "In me thou see’st the glowing of such fire" is the turn of the sonnet. Afterwards, the presenter of the sonnet turns out to be more personal. The speaker talks further about how death is like him and how his abilities is like the qualities. In the start two quatrains of the sonnet, the emphasis was on the qualities of death rather than how the speaker connected to death.