Each day, the sunflowers wake up and move towards the sun, following the star on their route from east to west, like needles of a clock. Taking all their light.
At night they do it again in the opposite direction to wait for their departure the morning of the following day.
But one day they stop doing it; Reach maturity and stop their dance.
They do not turn around for the rest of their lives and stare indefinitely eastward until they die.