Dhyana shlokas of various forms of God are potent storehouses of the divine properties attributed to the respective form.
There are worldwide records of people seeing the form when the bijamantra of the deity is recited with devotion after invoking the form by first reciting the dhyana sloka.
People from the West who learnt mysticism from Gurus in India have attested to the fact that the dhyana sloka creates a true form of the deity described in the dhyana sloka.
The statues installed in the temples built as per Agama Sastra (mostly they are located in south India) are all based on the dhyana sloka of the respective deity, though it is widely accepted that the statues are only a symbolic representation of the powers of the Almighty.
In ancient temples, the statues are consecrated after long procedures of mantra, yoga, homa and many rites. Metallic yantras which store divine powers are also installed below or within or near to the statue in the garbhgraha.
Two crisscrossing metal rods are grounded on the earth pasted or stuck just on the backside of the statue. In the ground the rods end up in two pots of mercury. On the back of the body, the two lines of the metal climb up the two legs, meet by crisscrossing at the seven chakra points.
The metallic or the stone statue becomes a conductor of enormous powers of the earth and connect the earth to the cosmos.
The elaborate procedures adopted in the Kumbha Abhishekha of the temples denote this connection, the connection being renewed/restrengthened by connecting the dhurva grass to the deity, to the homa mandala and to the toppest Kumbha on the main Gopuram of the temples. Only when a true connection is effected, a natural signal of the correctness of the connection arrives in the form of white throated eagle (Garuda) which will appear / encircle the Kumbha.
Thus the statues installed are also invested as true local relay stations of the divine power.
The sacredness we feel or sense in the temple standing before the deity is only the effect of such scientifically (ancient energy science, I mean) followed practices in the ancient temples. Many persons if they are able to sense the sacredness take it as a measure of their devotion, which is also partially true – to the extent they have refined their psyche.
The concept of kundalini-like crisscrossing metallic lines is not my imagination. Such an arrangement has been actually witnessed by some western devotees who could gain access to such rare information in some popular temples in Madurai district and elsewhere in India. I believe more such temples of yore in our country which are very popular and thronged by millions would be having this feature in the consecrated statue of main murti worshipped there.
Such practices infuse the divine forms at temples with truth of the form.
Sri Ramakrishna is famously stated as showing the truth of the form of the Goddess to the doubting Naren (later day Vivekananda) who believed only in a formless God.
All truths are not recorded in palm leaves, metal sheets, stone inscriptions where anyone interested can read and decipher. Knowledge was considered as sacred and was passed on orally from a guru to his sishya.
Westerners who with open mind come to India have learnt many things only orally from gurus of Sivananda Ashram, Bihar School of Yoga, Sri Ramana, Yogoda Satsanga of Yogananda and many such gurus living in forests or sacred hills. Some glimpses are available in some books written by them.
Vedic period treated only the natural forces as Gods. It was the later addition of Atharva Veda that talked about tantricism as a way of reaching God. It was the foundation for proliferation of various forms for worship. The literature of the puranic period built on the foundation.
Kings of yesterday India who were proud students of rishis and sages accepted the truth of the forms which the masses can respect as true representation of the deity and pray, built up temples for the masses.
I have read some things on this topic but I am immediately unable to add further in this post.
I have lost around 700 books in the Chennai floods which include some rare 45 books on these topics. I did not have a list, hence I am unable to remember the titles of the books to search online. I found some five six books available from abroad at a cost of USD50 to USD200 whereas I had bought them between Rs.300 to Rs.700 in the late 90’s.
If God allows me enough power and good memories and the ability to quote relevant sources, I may write about them also in my blog, God willing. 🙏🙏🙏