The “Knot” is one of the earliest units of measurement of nautical speed, while paradoxically a knot is something that secures a line or two lines to prevent or control movement. The blood knot is among the strongest knots for joining two separate lines, so strong that once tied it is impossible to separate the two lines again. Its resistance to slippage of wet lines and its minimal resistance while moving through the water, make it an incredibly useful knot for fishermen. The knot’s usage evokes images of seaside life, while it’s practical function literally unites two elements that were once separate into one continuous line with a secure and permanent connection.