A Buddha speaks in one language, Jesus in a different one, Krishna in another. They use different factual knowledge, they use different techniques, devices, but the central core of their teaching is the same. And that, if you allow me to say it, is how to attain to total awareness.
Awareness is the basic teaching of all the enlightened ones. They use many parables, techniques, devices, symbols, myths, but those are irrelevant. You can cut them away, you can put them aside and just bring out the basic core. The basic core of all the awakened persons is awareness. So Jesus goes on telling his disciples how to be more awake – not to be sleeping, not to move in dreams, but to be alert, awake.
He used to tell a parable. He said that it happened once that a great lord, a great master, a very rich man, went on a far-away journey. He told his servants that they had to be always alert because he would be back any moment, ANY moment. And whenever he came back, the house should be ready to receive him. He could come back, any moment. The servants had to be alert, they couldn’t even sleep. Even at night they had to be ready because the master could come any moment.
Jesus used to say that you have to be alert every moment because any moment the divine can descend into you. You may miss. If the divine knocks at your door and you are fast asleep, you will miss. You have to be alert. The guest can come at any moment, and the guest is not going to inform you beforehand that he is coming.
Jesus said just like the servants of that master, remain alert continuously, remain aware, waiting, watchful because any moment the divine can penetrate you. And if you are not alert, he will come, knock and go back. And that moment may not repeated soon; no one knows how many lives it may take before the divine will again knock at your door. And if you have become habitually asleep, you may have missed that knock many times already and you may miss it again and again.
Be alert. That is the basic core. All else is only to be used to reach it. So just because Jesus says the earth is flat, he doesn’t become unenlightened. And just because you know the earth is round, you don’t become enlightened. It is not so easy!