Once when Adi Sankaracharya was passing through a forest, an elephant came rushing towards him. To save himself, Sankara too started running. Seeing this from a distance, a disciple shouted rather mockingly.
"Kim palayanasi; Gajopi mithya?" (Why are you running; the elephant too is an illusion?) alluding to Sankara's famous precept,
"Brahmn Satyam, jagat mithya" (The Supreme Being is the only truth; the world is merely an illusion.)
Not to be outdone, the seer replied:
"Mam palayanopi mithya!" (My escaping too is an illusion! ;-))
One does not know if the story is true but Indian scriptures do often resort to humour to convey a spiritual idea. Well!! Let's take this story too in the right spirit :)