The quote from William Shakespeare's "Romeo and Juliet" suggests that feelings of grief can demonstrate deep love and affection for someone lost. It indicates that the intensity of one's sorrow often reflects the strength of the bond shared with the deceased. When we grieve, it can serve as a testament to the love that existed in the relationship. This notion highlights the emotional connection between love and loss, where grief is an outward expression of what once was cherished deeply.

However, the latter part of the quote implies that excessive grief may reveal a lack of wisdom or reason. It suggests that while love and mourning are natural, allowing grief to overpower one's judgment can indicate a deficiency in practical understanding. This balance between grieving and maintaining composure points to the importance of managing emotions with reason. In essence, while grief signifies love, it is also essential to navigate it with clarity and sensibility.