Two ‘Kshetras’ (holy places) in this world (‘Bhoo loka’) are spoken of by the Vedas. One is Seshagiri (the Hill Sesha) with the Srinivasa Perumal in Tirupathi and the other one is Jagannatha Kshetra in Puri.
Sri Ramakrishna Paramahamsa used to say, “The waters of the Ganga, the dust (‘rajas’) of Vrindavan and the Prasada of Puri - all these three are ‘Brahmaswaroopa’ - verily the Brahman.
What is it that one should never eat and that is to be totally avoided? It is that which a cat leaves after eating a little. The Shastras say that the worst sin is earned by consuming what a cat has left after eating a little.
The same Shastras say that the Puri Prasada can be taken even from the cat’s mouth and eaten! So pure and special is the prasada of Puri Jagannatha kshetra.
Kanchi Mahaswami Sri Chandrasekarendra Saraswati Swamiji would never drink even a drop of water before completing Sri Chandramouleeswara Puja. Until then not a drop of water would go into Him. But when someone brought Prasad from Puri Jagannatha Kshetra, Maha Periyava who might not have even brushed His teeth snatched it from his hands and took it! One should take this Prasad in this manner without any second thought.
Such is the greatness of Puri Prasad.