In Shakespeare's "King Lear," the quote speaks to the purity of love, indicating that true affection cannot coexist with conditions or expectations detached from its essence. The speaker suggests that when love becomes entangled with considerations that don't embrace its core essence, it loses its authenticity and becomes something less than true love.
This highlights the idea that love should be unconditional and genuine, free from ulterior motives or social conventions that dilute its value. Shakespeare's examination of love underscores the complexity of human relationships and the potential for misunderstandings when feelings become mixed with external influences.