Stone

King Ambarisha achieved the rule of the entire earth, consisting of seven islands, and thus possessed practically unlimited opulence, he did not care at all for that exalted position. He knew very well that such material things, like that which is imagined in dreams, will ultimately be destroyed. Indeed, due to his unflinching devotion for the Supreme Personality of Godhead and the Lord’s devotees, Maharaja Ambarisha considered the entire universe to be no more significant than a stone.

http://freedomweapon.blogspot.com/search/label/Ambarisha