PERSUASION. The act of influencing by expostulation or request. While the persuasion is confined within those limits which leave the mind free, it may be used to induce another to make his will, or even to make it in his own favor; but if such persuasion should so far operate on the mind of the testator, that he would be deprived of a perfectly free will, it would vitiate the instrument. 3 Serg. & Rawle, 269; 5 Serg. & Rawle, 207; 13 Serg. & Rawle, 323.