Uddalaka said to Shvetaketu

As by knowing one lump of clay, dear one, we come to know all things made out of clay:
That they differ only in name and form, while the stuff of which all are made is clay;
As by knowing one gold nugget, dear one, we come to know all things made out of gold:
That they differ only in name and form, while the stuff of which all are made is gold;
As by knowing one tool of iron, dear one, we come to know all things made out of iron:
that they differ only in name and form, while the stuff of which all are made
is iron – So through that spiritual wisdom, dear one, We come to know that all of life is one.”

Knowing that all of life is one is complete knowledge; the very definition of Purna Vidya. With this knowledge of oneself as whole and complete, everything we think, everything we say and everything we do becomes a blessing.