Ramayana is a historical fact, validated by archeology, Astronomy and, Literary references from contemporary literature from India and from around the world of ancient times.

Ramayana has over three thousand versions.

Some of them are in foreign languages of the Far East. Please read my articles on Ramayana, and Rama.

Be that as it may.

Ancient Indian texts have minimum four meanings.

1.Literal meaning.

2.An Allegory to indicate a Spiritual fact.

3.A hidden meaning indicating Tantra Sastra.

4.Explaining a scientific fact.

Apart from the words/letters of Characters indicate abstract qualities.

In some cases these names are mysticallly locked sounds.

They have the power to heal.

This is because of the Resonance the Sound creates.

I have written on the Breath of Earth measured is identical to the Resonance of OM.(Schumann Resonance)

Please read my articles on Mantras.

Though there are many names for Individual God(Saguna Brahman), sometimes  there is more than one name for One God, some names are more powerful.
One such powerful name is Rama.

Probably because of this fact the sound of Rama in various forms is found in many cultures.

For the worship of RA.

Rama nama is declared to be so powerful that it is rated higher than Lord Rama Himself.

For more on Rama Nama please read my article on this.

The reference to Rama Nama is found at an important point in Vishnu Sahasranama, which along with Lalitha Sahasranama is rated as best among Mantra and Tantra Sastra combined.

Vishnu Sahasranama chanting is guaranteed to provide you mental peace, apart from many other things.

There are two methods of reciting Vishnu Sahasranama.

One is starting from the beginning to the end, with

Arthaa vishanna chanted twice.

The shorter version is to begin at the beginning and skip Phala Sruthi.

That is after Vanamaali Gathisaarngi…, you go to

EASWARA Uvacha, declaration by Lord Shiva

And continue to till the end as in the first method.

All the fruits that accrue are described in the phalasruthi.

But even when you skip the phalasruthi in the second method of chanting, you get all the benefits by the single sloka of EASWARA Uvacha.

What is that special sloka?

राम राम रामेति रमे रामे मनोरमे ।
सहस्रनाम तत्तुल्यं रामनाम वरानने ॥
Raama Raama Raame[a-I]ti Rame Raame Manorame |
Sahasra-Naama Tat-Tulyam Raama-Naama Vara-[A]anane ||

Meaning:
1: By meditating on “Rama Rama Rama” (the Name of Rama), my Mind gets absorbed in the Divine Consciousness of Rama, which is Transcendental,
2: The Name of Rama is as Great as the Thousand Names of God (Vishnu Sahasranama).

The sloka is special because the Speaker is Easwara(Shiva) and the one who is spoken  about is Vishnu as Rama.

Easwara means personal God.

Vishnu is One supports everything.

One interpretation of this sloka, which is popularly accepted is

‘Chanting Rama nama accounts to chanting the whole Vishnu Sahasranama (1000 names of Vishnu). :

The other explanation is that chanting Rama Nama is equivalent to chanting God’ s Name thousand Times.

Here Sahasranama is interpreted as Thousand Names, which is etymologically correct and not specific to only Vishnu Sahasranama.

The Numerical Explanation.

According to Sanskrit scriptures, there is a principle in which sounds and letters are associated with their corresponding numbers.
Ra denotes number 2 (Ya – 1, Ra – 2, La – 3, Va – 4 … )

Ma denotes number 5 (Pa – 1, Pha – 2, ba – 3, Bha – 4, Ma – 5)
So Rama – Rama – Rama becomes 2 * 5 * 2 * 5 * 2 * 5 = 1000amayana the Indian Epic is not a figment of imagination in the fertile mind of a poet.

* In the sloka each of the sounds RA and MA occurs thrice.

Hence the above calculation.
Reference and Citation.

https://www.quora.com/What-are-some-mind-blowing-facts-about-Lord-Rama

Additional information on Sanskrit Numerals1″to and Equivalent Alphabets.

‘ Sanskrit RA and number 2 marked below as #

Sanskrit Ma and 5 marked as *

I have provided this information to clarify the Numerical interpretation of RA and MA.

Sanskrit scholars and Linguistic specialists as I am a novice.

Source of the following information.

https://www.sanskrit-trikashaivism.com/en/learning-sanskrit-writing-ancient-sanskrit-characters-1/422

Numbers
Numbers	१	२	३	४	५	६	७	८	९	०
Numbers (variants included)		n/a	n/a	n/a	or	n/a	n/a		or or	n/a
Transliteration	1	2 #	3	4	5 *	6	7	8	9	0
Consonants
Gutturals	क	ख	ग	घ	ङ
Gutturals (variants)	n/a		n/a	n/a	n/a
Transliteration	ka	kha	ga	gha	ṅa
Palatals	च	छ	ज	झ	ञ
Palatals (variants)	n/a	n/a	n/a	or	n/a
Transliteration	ca	cha	ja	jha	ña
Dentals	त	थ	द	ध	न
Dentals (variants)	n/a	n/a	n/a		n/a
Transliteration	ta	tha	da	dha	na
Labials	प	फ	ब	भ	म *
Labials (variants)	n/a	n/a	n/a		n/a
Transliteration	pa	pha	ba	bha	ma
Semivowels	य	र #	ल	व
Semivowels (variants)	n/a	n/a	or	va
Transliteration	ya	ra	la	va