Earth was a far more advanced planet in the past, a long time ago, then something happened and the human technology and evolution was reset.
People could reach out to far off galaxies using techniques that modern man does not know. people knew how to convert matter into energy! There are men who are about a 1000 years old but can manifest into light. India, had some remnants of this knowledge, but most people dont have a clue about this including the so called Yogis. This is not fiction though. If you have been researching on this let me know or post here in the comments.