This illustration graphically depicts the meaning of Advent. Again and again Christ is portrayed in the liturgy as the rising Sun. The comparison is a good one, for there is nothing that can quite equal the power of the sun's rays to quicken, warm, and bless. Man, whether considered individually or collectively, is represented by the city of Jerusalem (to which he is often compared), which awaits its Redeemer and will reach the zenith of its development only on His arrival. Mary is represented as the lily because of her Immaculate Conception, as the morning star out of which rises the Sun of Justice, and as the one who crushes the head of the serpent.