Materialization of solid objects is often a side-effect or symptom of some greater work being undertaken.
Some holy men (and women, of course) have produced food, water, and other such items seemingly from nowhere at various times. Others have produced food but found it to be rotten (!)
Normally something like this is a boon or manifestation betokening a great transformation or initiation. If someone can make food appear out of thin air then that's probably the least remarkable thing about them! ;)