Nebula
...a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter...
...a clouded spot on the cornea causing defective vision...
To me, Nebula brings about ideas of space, man and gods, heavenly beings, both human and animal, engulfed in patterns of light, dark and color. What the eye sees, can be defective until the mind creates its reality...
