Courageous and determined
The lines are explaining how even though our hearts are beating, they are beating us all the way to the grave. The heart beat is compared to the rhythm of a funeral march with everyone stepping in time. The lines are showing hearts are beating courageously and with determination all the way to the person's death, which is inevitable.
The Declaration of Independence is non-fiction
Realize, had forgotten, buy, get (not got)
Old :
Spiritual, mental wellbeing, health, the past, nobility.
Settled:
Strong, powerful, stability, control (of things), relaxed, conscious.
Gerrymandering is a process of gaining political advantage. It is achieved by manipulation of electoral using certain tactics. Therefore, gerrymandering can thwart the purpose of single-member district elections because districts will favor one political party over another in this case.