"Pan": "all", "Sperma": "seed". Panspermia as theory that life exists throughout the universe. Either life particles dusts were carried by meteorites, comets, or our spaceships, the unstoppable force of life are always permeating into unthinkable places. What's regard as "alien", "xeno","astrobiologial" only reflects our anthropocentric limitation of knowing. Just like the "Dao", life is as"way it is". what kind of other worldly life "forms" can one imagine? And how far can our imagination reach?