Sure thing - they're quite difficult to translate though, but I'll give it a try...
"Kosmosaik" - don't know actually, but I assume it would be something like "Cosmosaic", but I'm not sure.
"Naturens Mystär" - Also really difficlut, but it would probably be something like "The Enigma Of Nature" or "The Mystery Of Nature".
Also, for the last ones, I'm not sure if it's one, two or more titles but I'm assuming there's two of them, namely:
"Vad Aftonvindens Andning Viskar" - "What The Breath Of The Evening(or Dusk)wind Whispers"
"Spirar Och Gror" - "Spires And Grows"
"Strålar" - "Rays" or "Beams"
I do have to point out again that I'm not sure wheter it's one, two or three songs in the end, but I think (and hope) that my analysis is correct.