That's good 'The ghost of the mass'. Another silly question, Why does not EM waves require medium to travel? if photon is energy and does not have mass, it should require a medium like ether to travel. But we know ether does not exist...
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Originally Posted by Profpat  I agree with you Dipayankar; it is real, it is energy, it is a two dimensional transverse wave. The reason why I called it a ghost particle is that it is created when matter is converted to energy. ( The Photon ).
A quick research on the internet yielded this;
A theory for gravitation has been presented based on the approach that gravity is the "aether wind" [10]. Gravity is related to mass and mass is related to light energy via the equation, E = mc2 [11-12]. Gravity can be modeled as a mass gradient and is shown to be inversely proportional to the emanation of light energy as a light gradient by the proportionality constant, žc2. In other words, light is basically a "hole" in the quantized aether that travels as a perturbation opposite the knocking action of the particles that comprise the medium. This is why light can be thought of as "the ghost of mass."
Please note the last sentence.
Thanks for the question and best to you,
Pat |