It's difficult to communicate in this world even when we speak the same language. But in the  Pureland or heavenly kingdom, we can understand each other even without speaking ; Supreme Master Ching Hai reveals that in the higher world, communication  is just through radio waves. There's no need to distinguish between languages. It seems there's only one type of language in the whole world. So how should  we communicate with the whole universe? Why do the scriptures say "Buddha speaks  one single language that all sentient beings  understand"?

There's one common language in the whole universe. Whoever has the secret code will know how to receive and send it and communicate with the whole universe. The universe is like a network that connects each planet. If we have the access to the planetary network system, we will understand everything, know everything, be saved from any trouble and get whatever we pray for. That's why we need to practice the Guan Yin Method.