In the passage above, Lady Macbeth fears that Macbeth is "too full of...milk". This description reminds us of another example, when Lady Macbeth says, “Sex me here… Come to my woman's breast / And take my milk for gall” (1.5.38, 45-46). Here, removing milk is equivalent to removing femininity, demonstrating that milk is an essential part of femininity. Therefore, in saying that Macbeth is "too full of the milk of human kindness," Lady Macbeth worries that Macbeth is too feminine to do what is necessary to become king as quickly as possible (i.e. kill Duncan). Furthermore, he calls it the "milk of...kindness", suggesting that it is the feminine quality of kindness that makes him incapable of acting. Lady Macbeth further characterizes her definition of femininity, saying, “Block the access and passage to remorse, / Let no scrupulous visitation of nature / Shake my grim purpose” (1.5.42-44). Feelings of remorse are "visitations of nature", suggesting that remorse is part of female nature. Emotions such as remorse "shake [his] purpose," diminishing his ability to act. According to Macbeth, femininity is defined by emotions, which are an obstacle to it