The Stoics pictured two parallel lines, each starting from its own finite point and moving infinitely in the same direction, say left. But one line starts further to the left of the other, so the one "infinity" is shorter. It's a paradox: true, demonstrable, yet incomprehensible.
My sin feels infinite, but the love of God is infinite both within me and outside me, going in every imaginable direction, like the light of the sun compared to the beam of a laser pointer with which I play with the cat. I sit on the edge of the bed and grouse and daydream, but eventually I get up and go where I am called.
--Sarah Ruden (Paul Among the People)