In John's Gospel there are always two levels at play: The literal level of the text and the theological level, the something "deeper" at work. In today's narrative, Jesus looks out at the crowd of people and sees that they are hungry (whether they themselves realize it or not). That is what is happening on the literal level. But on a spiritual level, we see how Jesus sees their hunger for God and how he will come to feed them, as the rest of John's sixth chapter plays out, with his very self.