The state of the garden is the mirror image...

The state of the garden is the mirror image, the reflection, of the quality of one's actions in this world. "A reward for what they used to do": one's reward is the action itself. It does not come later in time because in Reality there is no time. Action has its own reward within itself in this time zone. In the next life, where there is no time, it manifests again in meaning, in a state in which the soul sees itself.

Man perceives that having done a good turn for someone, he is paid back years later.