The name means “high on life” in Israeli slang, and from the moment you walk into this Flatiron District world music venue, you’ll be on your way to an expanded consciousness.  The walls are covered with Day-Glo paint doodles of the sort usually found in the margins of fifth graders’ notebooks; black lights give everything from white T-shirts to the waitresses’ smiles a preternatural glow.  Featured acts are equally surprising – a week’s lineup can include anything from Malian throat singers to local heroine Fanteha, a Brooklynite and native Cape Verdean who sings the blues as well as she does Afro-Brazilian samba rhythms.  Satalla is owner Michael Yaacobi’s attempt to give U.S. audiences an intimate evening with acts often famous enough to fill concert halls in their native lands (the club seats just 80 people).  The light menu, however, is nothing to write home about, so dine beforehand elsewhere in this foodie neighborhood (37 W, 26^th St.; 212-576-1155; cover, $10-$24).