It is well-known that the body of Paramahamsa Yogananda, after his death, did not decay like any other dead body. And we can read it from here.
Are there any other instances from either history or scriptures similar to this?
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It is natural for the body to decay after the death. It is possible that if some Prana is left in the body after the (so called) death (which a yogi can do) the body will preserve some form of freshness (like glow and elasticity of the skin etc.) for sometime. However, this is not a good sign of mukti. Best way for a normal person or a yogi to leave the body is to completely leave the body by separating it from from subtle body (sukshma-sarir). Some Prana left in the body indicate that the process of death is somehow obstructed which is not good for Jiva to move it on its path further.
Prana is a part of the subtle body:
"The component parts of subtle bodies are (a) five organs of perception (Gyanendriya, ज्ञानेंद्रिय), (b) two inner organs viz. intellect (Buddhi, बुद्धि) & mind (Manas, मनस्), (c) five organs of action (Karmendriya, कर्मेंद्रिय), and (d) five organs of vital force (Prana, प्राण)."
Sri Aurobindo’s Passing - AuroMaa auromaa.org/sri-aurobindos-passing
Even today I am fully convinced that Sri Aurobindo’s body has not decomposed. There is another reason for my strong conviction. I have seen the body of Saint Francis Xavier in Goa and I noted then that it had shrunk, due to loss of liquid it had a grey colour as in the case of Sri Aurobindo’s body, otherwise it was perfect.