Meher Baba explained
The state of God in the Beyond-Beyond is of Eternal Silence. This Eternal Silence never breaks. God in the Beyond-Beyond state is eternally silent.
In the Beyond State of God there is Eternal Silence and there is Eternal Sound. The Eternal Silence was broken when creation began. It was broken when that Original thought "Who Am I?" came into existence in the form of the original word which gave the answer to that original thought. That answer was God's conscious state achieved in the Beyond: "I Am God. I Alone Exist." Creation is the original breaking of God's Eternal Silence which gave birth to infinite sounds. These infinite sounds end in an Infinite Sound, which merges with Eternal Silence and becomes an Infinite Soundless Sound — the Sound of Eternal Silence.
Silence is God's eternal state. Infinite sounds bring about the state of creation. Infinite Soundless Sound is the state of Conscious God. The apparent silence of the Avatar, which Meher Baba maintained, was for the sake of His universal work. When the result of that work is manifesting, His silence is broken. The Avatar's silence contains the sounds of the universe within His universal being to harmonize all sounds into one sound. At the time of His total manifestation, the harmony of all sounds into one will signal the breaking of His silence, because that one harmony, the sound of His word, will have become apparent.
The Avatar completes His work before He drops His body. The completion of His work signifies that all sounds have been harmonized into one, and when that one sound manifests as His Word, it is the breaking of His silence. Meher Baba has been breaking His apparent silence gradually since He dropped the body, and as a result of this, different people from all over the world are coming into His contact. This signifies that the different sounds of those beings are being harmonized in him—in His one sound, His Word. When this harmony becomes apparent to these human beings, they recognize that He is breaking His silence by harmonizing all sounds in His Word. The ultimate meaning of the speaking of His word is the turning of separative human consciousness toward universal oneness and harmony.
Internal and external silence
Silence must be both within and without – internal as well as external. External silence is easy, but the internal is difficult.
internal silence means you must silence your mind for twelve hours. When you speak with the tongue, it is speech. When the lips are sealed, it is external silence. Now, the mind, too, has a tongue of its own with which it talks. The continual working of the mind is like the mind continually talking. The very creation of a thought is like speaking internally. Hence the "lips" of the mind must be sealed.
Keeping the mind silent for twelve hours is equal to not thinking at all with the mind for twelve hours. But the mind does not stop thinking for even twelve seconds! If anyone can consciously keep the mind's thoughts silent for even twelve seconds, he would achieve a very advanced spiritual state.
You feel blank at times for a moment or more, but that does not mean the mind's working has stopped. To stop the mind from thinking, or to make it think and concentrate on one thought, are both equal. If the mind cannot be stopped from thinking, the best remedy is to try and engage it by concentrating on one particular object.
To drive away thoughts means not to entertain or encourage other irrelevant thoughts.
Just imagine that you are on a special watch duty to guard yourself against grave danger to your very life. This "guard" means watching over unexpected and sudden attacks from deadly enemies who are determined to kill you. During that time, you have to keep on reproducing in your mind only one word Baba.
When you inhale, in your mind say BA, when you exhale say BA. Let this become an automatic process. This way you will only focus on your breath. Breath is BABA. No other thought can, or will enter your mind. The beauty is that you will now continue to function beautifully in the present, while using your subtle senses to excel in the gross world. You will now be in a constant state of meditation.
I am the Ocean of Silence, but I am never silent.
I am eternally speaking in what you say to one another; and the voice that you hear deep within your souls is My voice inspiring and guiding you.
I am never silent, I speak eternally. The voice that is deep heard within soul is My voice, the voice of inspiration, of intuition, of guidance. To those who are receptive to this voice, I speak.
I am eternally talking in your talk and I am bored with the talk, for it is all idle when it is not lived. I will speak when I feel like saying the Word which was spoken in the Beginning-less Beginning — for that is the only Word worth speaking. Words are the prose of the world, and the world is My burden; My language is the poetry of My creative Word, and when I speak that Word it will touch the hearts of all men and its divine touch will make them feel the oneness of all. Then separateness will dissolve and hatred and jealousy and greed will melt away. Diversity will still be—for your life in illusion requires its experience, but behind and beneath and through all the diversity will be the feeling and knowledge of oneness; and the so-called sinner will feel that he one day will be a saint, and the saint will know that God is in the sinner as much as in himself.
If My silence does not speak to you, of what use would it be if I spoke in the language of your minds? When My speaking will be heard universally, God will make Me speak. But that speaking will not be speeches of words, but the Word of words which will irresistibly impart to those who are ready for the 'I am God' (Anal Haq or Aham Brahmasmi) state.
Why did Meher Baba observe silence?
Because man has been deaf to the principles and precepts laid down by God in the past, in this present Avataric form I observe silence. You have asked for and been given enough words — it is now time to live them.
This time of your being with Me, I do not intend giving you a lot of words to exercise your minds. I want your minds to sleep so that your hearts may awaken in My love.
You have had enough words; I have had enough words. It is not through words that I give what I have to give. In the silence of your perfect surrender, My love which is always silent can flow to you — to be yours always to keep and to share with those who seek Me.
I repeat, I lay down no precepts. When I release the tide of Truth which I have come to give, men's daily lives will be the living precept. The words I have not spoken will come to life in them.