Hi Rostiger Rentner,
thanks for playing and sharing your experience! These "Crystals" are actually breads. XD We made them glow, to show the player that they can be picked up. I'm sorry, we had not much time for modeling ... After taking a bread with you, you can throw breadcrumbs (right mouse button), to mark your way. The only objective of the game is to find your way home. Our level designer Rico is a nasty guy, thats why you found youself walking circles all the time. I'm also sorry for this.
It's a labyrinth. And you can defeat it. Experience shows that people need between 10 and 30 minutes to find their way home.
Cheers,
Falk