The sonnet 116 - 'Love's not Time's Fool' is a meditative attempt of Shakespeare to define true love. Love is inconstant when it succumbs to infidelity or to Time, or agrees with the partner who wants to remove the union of marriage. Here Shakespeare uses two images to emphasize the permanence of true love. They are beacon or light house and pole star. Beacon remains unshaken on the shore in spite of the ravages of wind and waves. Just as it gives a sense of direction to the saliors on the sea, true love gives a proper direction to the partners in marriage when they are sailing in the turbulent sea of life. Pole star gives, like light house, right direction to the wandering sailors. It is pernament. Similarly, true love is permanent and it helps the married partners to go to the right direction and destination. Shakespeare draws a sharp contrast between permanent and impermanent to state the two contrasting natures of true and untrue love.