Please help me identify where this story is from, I believe it was written by Stanislaw Lem and is a part of a Ijon Tichy book, however I can not figure out which one.
The plot, from what I remember:
Ijon Tichy finds a suitcase in a desert and decides to kick it. The suitcase tells Ijon not to do that again, for it is the most perfect being in the universe. Ijon asks why it looks like a suitcase, to which the being responds by saying it doesn't care how it looks, as it is perfect anyway. After some more questions Ijon kicks the suitcase again and gets sent to the opposite side of the galaxy.