What does this mean?

I like the new messages on the Vita 1000 juices. They are funny. I post the mango soon who has learned Azerbaijani faster than I have! For now I am puzzling over this bit of dialogue.

Funny. I sent more to this post but it didn't travel from my iPhone. This is how I am translating it:

Jokes and black current berries - from Sheki as a gift for your longevity!

But what's the connection between Sheki and jokes? And are jokes thought to promote longevity? Personally I believe this is true, but do Azerbaijanis or Sheki dwellers?