In plain words
Good in the heart, good in the words, if no good springs up in the deeds, how can Sai be pleased with you and give you joy, Sathya Sai, giver of Śānti and Prema? Sweetness in the words while you keep bitterness in the heart is no good: it is only a stain on you. A life without a stain is what counts on earth; this is the chief value in all learning.
Students! For the man who would recognise the eternal Satya in daily life, the direct proofs are the body, the senses, the Manas and the Buddhi. Only when we recognise the secret of these do we understand the truth of how they are to be used. But ninety-nine per cent of the people in the world act without recognising their secret, and for that very reason fall prey to many sorrows, griefs and troubles. This body, the senses, the Manas and the Buddhi are only vehicles for the jīva; they themselves are not conscious.
The body is merely inert. It becomes a lump of blood, takes a tender form in childhood, enjoys beauty in youth, and comes to decay in old age. On the strength of this change, man thinks the body is conscious, that the body is not inert. But the body is not the cause of this change; the body is only inert. Here is a fine example. Every day we sweep the house and throw the rubbish into a pit. When we have thrown it in like this for some months, it becomes a big mound. Just because it is a big mound, does that mean it is conscious? No, no. The body too is just like that. When we throw idlis, dosas and the like into our body, it grows like that mound. Stop feeding it for a while, and see. This body does not grow. It wastes away. And so:
Look at the belly: a pit of filth and urine; look at the body: a mound that stinks; for the Ātma, this is a rented house.
That is why, in Vedānta: “dēhō dēvālaya prōktō jīvō dēvas sanātanaḥ.”