When they were grown up, their mother spoke to them thus: "My sons, you have no cause to blush, for you are the sons of the king; go, therefore, to his court, and he will give you everything you need." When they arrived at the court the king admired their beauty, and finding in them his own likeness he asked, "Whose sons are you ?" And when they replied that they were the sons of a poor woman who lived in the desert, the king clasped them to his heart with joy saying, "Have no fear, for you are my sons; if strangers eat at my table, much more shall you who are my lawful sons." Then the king sent word to the woman to send to his court all the sons which she had borne, that they might be nourished there.
"Very holy father," added Francis, "I am this poor woman whom God in his love has deigned to make beautiful, and of whom he has been pleased to have lawful sons.

The King of Kings has told me that he will provide for all the sons which he may have of me, for if he sustains bastards, how much more his legitimate sons."[19] So much simplicity, joined with such pious obstinacy, at last conquered Innocent.

In the humble mendicant he perceived an apostle and prophet whose mouth no power could close.

Successor of St.Peter and vicar of Jesus Christ that he felt himself, he saw in the mean and despised man before him one who with the authority of absolute faith proclaimed himself the root of a new lineage of most legitimate Christians.
The biographers have held that by this parable Francis sought above all things to tranquillize the pope as to the future of the brethren; they find in it a reply to the anxieties of the pontiff, who feared to see them starve to death.

There can be no doubt that its original meaning was totally different.