Blood Wedding Journal 1:

While reading the play Blood Wedding I notcied the symbol of the moon. I think the moon demonstrated the imagery of light. The moon shines the light revealing what the dark can hide. This can parallel with a sence of secrecy  in the fact that when it is dark the truth cannot be revealed because you cannot see it. The three lumberjacks are talking about how the moon must shine to make the trip easier for the bridegroom in his search to find his bride and Leanardo. This can also relate to the common theme demonstrated through all three plays in that ignorance is bliss. If the light is not shown on the true side of the situation then there is no question of its accuracy or truth.