The science of mantras is very deep. It is as deep as there is no end to the depth of the sea and the depth of space in the sky on Earth. Mantra results from experience and practice. Like you want to dive in the sea but there is a fear of drowning. As you get to practice swimming, it becomes easier for you to dive. In the same way, when you get to practice the method of mantras, you can do whatever you want.
Let’s understand with a scientific example. When you dig a deep well, you see only the pit. But slowly when we go down, water from all four sides starts coming into the well from its pressure. And the source of water makes a link with that well. And sources from far meet that well.
In this way, when you make your Brain the well of mantra, then the sources of energy from the space are connected to your Brain from all sides. Your Brain’s hard disk becomes bigger. And you have a store of energy. The energy coming from all around increases your memory. And this memory is also stored in rebirth. Hence, the Sage monk knew the secret of their rebirth.
For this, you should practice mantras and enlarge the hard disk of your brain and collect energy deposits in your mind.