Feeding Five Thousands: Do not Work for Perishable Food

After feeding the five thousand, the people accepted Jesus at the level of the prophet to come. They want to catch him and make as their king by force. But Jesus knowing their intents, he departed alone to the mountain side for .
The people were looking for Jesus and when they found him in Capernaum, they asked him, “Rabbi, when did you get here?” Jesus answered, “Very truly I tell you, you are looking for me, not because you saw the signs I performed but because you ate the loaves and had your fill. Do not work for food that spoils, but for food that endures to eternal life, which the Son of Man will give you.”
I feel that many people in this world are looking Jesus only for earthly level, in other word for materialism but not for heavenly level, or spiritual level. There may be some following, looking Jesus, serving for the sake of their own benefits, bellies, to build their own kingdom.
Jesus urged to look for him, not of his blessings because he is the only true bread which gives life eternal.