Man is a line. Woman is a circle.

Marriage is the art of making a oneness out of these two,
mingling the directed, mission-oriented linear energy of the male
with the nurturing, embracing circular energy of the female.

Combine a line and a circle and you get a spiral.
When both man and woman transcend themselves and open up to the divine power that unites them,
they create an infinite spiral, twirling upward in a dance of love.
(Words compiled by Rabbi Aron Moss, Sydney Australia)