As is in Shri Sai Satcharita, by Hemadpant .. Chapter XVI & XVII Page 90

Om Sai Shri Sai Jaya Jaya Sai

The Lord's Grace is the most essential thing.  When the Lord is pleased with any body, He gives him Viveka and Vairagya; and takes him safe beyond the ocean of mundane existence, 'The Self cannot be gained by the study of Vedas, nor by intellect, nor by much learning.  He, whom the self chooses, gains It.  To him the Self reveals Its nature,' says the Katha Upanishad.

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As is in Shri Sai Satcharita, by Hemadpant .. Chapter VIII Page 47

Om Sai Shri Sai Jaya Jaya Sai

It is said that though God created various sorts of creatures, He was not satisfied, for none of them was able to know and appreciate His work.  So he had to create a special being - Man, and endow him with a special faculty, viz Knowledge; and when He saw that man was able to appreciate His Leela marvellous work and intelligence, He was highly pleased and satisfied.

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As is in Shri Sai Satcharita, by Hemadpant .. Chapter XXXIII Page 176

Om Sai Shri Sai Jaya Jaya Sai

So much about the spiritual implication of Udi.  It had also its material significance.  It conferred health, prosperity, freedom from anziety, and many other worldly gains.  So, the Udi had helped us to gain both our ends-material as well as spiritual.

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As is in Shri Sai Satcharita, by Hemadpant .. Chapter XXXIII Page 175

Om Sai Shri Sai Jaya Jaya Sai

It has been found out, that the Udi cured many physical and mental maladies, but Baba wanted to repeat into the devotee's ears the principles of discrimination between the Unreal and the Real, non-attachment for the Unreal, by His Udi and Dakshina.  The former (Udi) taught us discrimination and the later (Dakshina) taught us non-attachment.  Unless we have these two things, it is not possible for us to cross over the sea of the mundane existence. 

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As is in Shri Sai Satcharita, by Hemadpant .. Chapter XXXIII Page 175

Om Sai Shri Sai Jaya Jaya Sai

Baba also taught by the Udi that the Brahman is the only Reality, and the universe is ephermeral, and that no one in this world, be he a son, father or wife, is really ours.  We come here (in this world) alone, and we have to go out from here alone.

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As is in Shri Sai Satcharita, by Hemadpant .. Chapter XXXIII Page 175

Om Sai Shri Sai Jaya Jaya Sai

Baba taught by His Udi that all the visible phenomena in the universe are as transient as the ash.  Our bodies composed of wood or matter of the five elements, will fall down, after all their enjoyments are over, and be reduced to ashes.  In order to remind the devotees of the fact, that their bodies will be reduced to ashes, baba distributed Udi to them.

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As is in Shri Sai Satcharita, by Hemadpant .. Chapter XVIII & XIX Page 102

Om Sai Shri Sai Jaya Jaya Sai

Generally, we see that people have a tendency to scandalize others, un-necessarily; and this brings on hatred and ill-will.  Saints see scandal, in another light.  They say that there are various ways of cleansing or removing dirt, viz. by means of earth, water and soap etc., but a scandal-monger had got a way of his own.  He removes the dirt (faults) of others by his tongue; so in a way he obliges the person, whom he reviles and for this he is to be thanked. 

Bow to Shri Sai - Peace be to all