The swan

 

                                                              The swan is an important motif in Advaita. It symbolises two things: first, the swan is called hamsah in Sanskrit (which becomes hamso if the first letter in the next word is /h/). Upon repeating this hamso indefinitely, it becomes so-aham, meaning, "I am That". Second, just as a swan lives in water but its feathers are not soiled by water, similarly a liberated Advaitin lives in this world full of maya but is untouched by its illusion