In a general sense, mourning in the Bible represents a state of grief over the lack of desires for good and true ideas about life. This often happens when a church or an aspect of a church has fallen away from the Lord and has been devastated. It can also be when a new church or state of a church is soon to begin, and there is nothing yet in place. In particular, especially when paired with "weeping," "mourning" has do with the loss of all desire for good and the presence of evil; "weeping" in those cases has to do with the devastation of thought and knowledge.

861. Verse 6 And it happened at the end of forty days that Noah opened the window of the ark which he had made. 'It happened at the end of forty days means the duration of the former state, and the beginning of the one that followed. 'Noah opened the window of the ark which he had made' means a further state when the truths of faith appeared to him.