Many stereotypes of the great fakir exist , among the more extreme being the picture of a near-naked man effortlessly walking barefoot on burning coals , sitting or sleeping on a bed of nails , levitating during bouts of meditation , or `` living on air '' -LRB- refusing all food -RRB- .

Many stereotypes of the great fakir exist , including a near-naked man easily walking barefoot on burning coals , sitting or sleeping on a bed of sharp nails , floating in the air while meditating , or `` living on air '' -LRB- refusing all food -RRB- .
