They do not accept the existence of soul. "The consciousness is a combination of matter." But if it is a fact, then why don't you, if some matter is lacking, why don't you bring that matter or chemical and inject in the dead body and make it again conscious? Why it is not possible? What is your argument? If you say consciousness is combination of matter...
Just like our motorcar is being driven. So when the petrol is finished, matter... Because motorcar running means combination of matter—some machine, made of matter, and some oil, acting—so it is running. Of course, the driver is there. But foolish persons, they do not understand, simply combination of matter will not act. There must be a driver, a living person. Then the motorcar will go. So supposing the combination of matter, that the petrol is finished. So we can bring petrol. Again the motor runs. So if this body was running simply on combination of matter, and some matter is lacking, so why not bring that matter and put into it, and it will run? But that is not possible. That is, that was... The living force which was running this body was a different element, spirit. Nāsato vidyate bhāvo nābhāvo vidyate sataḥ. We have discussed this verse. That is living force. And Kṛṣṇa says, vināśam avyayasya asya. This consciousness has no annihilation. Vināśa.