Sentence:  ... in her eye I find / A wonder, or a wondrous miracle, / The shadow of myself form'd in her eye: / Which being but the shadow of your son, / Becomes a sun and makes your son a shadow: / I do protest I never loved myself / Till now <WSD>infixed</WSD> I beheld myself / Drawn in the flattering table of her eye. 
Meaning of the word marked with <WSD> tags:  To set; to fasten or fix by piercing or thrusting in.