Cosmos ,Sanatan Dharma.Ancient Hinduism science.
Einstein formula is well known ragarding energy and mass relationship per his Mass Energy Equivalence (E = mc2) in his paper Annus Mirabilis in1905.
Many are unaware that Gita has already told us with a dedicated verse described below-
What it means that every mass has energy and energy could me massless. Actually there is challenge to this formula as energy does not have mass so how could it be transferable to mass- I will leave this for scientific people to carry on and get back to Ancient Gita verse-
bhūmir āpo ‘nalo vāyuḥ
khaḿ mano buddhir eva ca
ahańkāra itīyaḿ me
bhinnā prakṛtir aṣṭadhā || Srimad Bhagavad Gita, Chapter 7, Verse 4
MEANING- Earth, water, fire, air, ether, mind, intelligence and false ego—all together these eight constitute My separated material energies.
Thus, this mass–energy relation states that the universal proportionality factor between equivalent amounts of energy and mass is equal to the speed of light squared. This also serves to convert units of mass to units of energy, no matter what system of measurement units is used.
Krishna SAID IN in Gita that, Soul can neither be created nor destroyed. It just transfers from one body to another, that is from one form to another or one body to another.
Many years later, science said, Energy can neither be created or nor be destroyed it can only be changed from one form to another.
This proves that soul is nothing but energy. and Body is just a mass so when death happens, mass is converted to massless energy-called soul-
nainam chindanti sastrani nainam dahati pavakah na cainam kledayanty apo na sosayati marutah
Meaning : The soul can never be cut into pieces by any weapon, nor can he be burned by fire, nor moistened by water, nor withered by the wind.
It just leaves old body and finds new body.