The poem is written as a one stanza poem with twelve lines, but the plot, content, of the poem is separated into two sections. In the first part the speaker of the poem addresses the angels to blow their trumpets and "the numberless infinities" to arise. From this it’s clear that the speaker of the poem is talking about the Judgement day. He addresses the souls of those who died deaths caused by a number of things like chance, war or age and tells them to rise to meet God and never taste the woe of death again.
The poem has an abrupt shift after the calling of angels and souls of the dead. The speaker of the poem takes on a more personal tone. It’s as if he suddenly has an abrupt change of heart, after realizing his own sins for which he needs to mourn and repent. He is asking for a chance to repent on while “here on this lowly ground” because it might be too late for repentance after death. The poem ends with the imagery of a blood seal to describe the significance of repentance.