In this direct comparison, he equates Desdemona's generous spirit to the abundance existent in nature. What exists in nature is freely available to those who want it. In essence, it means that Desdemona has so much goodness in her that she will generously and freely assist anyone who seeks her help. The alliteration (the use of the same sound, usually a consonant, in successive words), also accentuates Desdemona's good qualities. The repetition of the f-sound is used for emphasis in this regard. These words illustrate one of Iago's most typical ploys. He sees goodness as a weakness and goes out to exploit a character's good nature to further his evil purpose.