What is Ruth about? It's the work of reconciliation.
Once upon a time, Sodom doesn't get off to such a good start. perhaps a really crappy childhood. anyway Lot ends up there, bad choice. he and his daughters barely escape.
there they are the three of them in a cave and the daughters have just witnessed what they think is the destruction of the known world, and so they bravely attempt to continue it by begetting children off their father (by getting him drunk like noakh did after the destruction of HIS world. curious)
thus is Moab born. rough childhood! rough story. yhvh gave us two choices: the boring Eden choice or the difficult choice. we chose...
so anyway Moab doesnt grow up to be so nice and gives Yisro'el a hard time. well, Yisro'el doesnt play so nice either look at those poor blokes who wanted to mary in when their prince fell in love with Dina.
so we have two mortal enemies again. always this story in tanakh! why?
anyway the edict in yisro'el is that the Moabites are OFFLIMITS!
but how to get to the messiah? by way of David. how to get to David? ah.. therein lies a story...
mostly the men are off fighting battles and are too busy to get on with creating David, but the women...
when Judah's sons shirk their duty with Tamar, aren't men enough to polinate her she forces the issue with Judah himself by way of trickery, pretending to be a whore... and eventually begets one of Davids forebears. which leads us to Boaz.
And Boaz, is HE up to the task? doesn't seem to be in any hurry to do it either. Naomi's two son in laws (Boaz's cousins) were'nt enough for the task either. so finally Naomi and Ruth have to force the issue by tricking Boaz into giving birth to David's second forebear. this is mostly Ruth's doing, she's the one who was determined to come back to Yisro'el with Naomi. and she comes from? Moab.
thus we move towards the meshiach, by way of the guts and reconciliation of women.
so i say this about mashiach: he will come when we learn to accept each other's differnces and create something new out of them.