spanish dreams

I dreamed in Spanish last night (which I haven't done since Spanish 4 in high school). We had gone to Mexico and I was running around asking simple phrases like, "donde esta el banco?" Toward the end, I was having these long involved conversations and struggling to remember words. Upon waking, of course, it all disappeared, so I don't know if I was actually speaking Spanish or just dreaming in gibberish. I'm not sure how or why, but I think I may have tapped into whatever part of my brain remembers all those Spanish classes a long time ago.