The meaning of “back” is more literal when it is connected to objects. When someone takes something back or gives something back, the spiritual meaning is mostly centered on the object in question and the people performing the action.There are many instances in the Bible which describe people turning back, looking back or going back. In most cases it is a negative, sometimes devastatingly so (as with Lot’s wife, turned to a pillar of salt when she looked back at the destructrion of Sodom). In general this represents our state when we are advancing to a new spiritual level and find ourselves wishing for the comfort and ease of the old one – going back represents a return to an earlier, inferior stage.

Evening, a time when the light and heat are fading away, represents a state in which a person -- or a community of people -- is turning away from the Lord, with little desire left to be good and little knowledge left regarding what good is. Evening is often a time of judgment.

In Genesis 19:1, the evening signifies the visitation that comes before judgment. (Arcana Coelestia 2318)

In Genesis 30:16, this signifies the good or truth in a state of good, but in the obscurity that is characteristic of the natural. (Arcana Coelestia 3949)