Human beings have never stopped discussing "love", everyone has their own opinion on what love is, and today I will share a story that is older.
The narrator of this story is the representative writer of early comedy in ancient Greece, Aristophanes
Statue of Aristophanes
Once, Aristophanes was invited to a banquet where he was asked "What is love?" "This is the problem
He also told a story for everyone
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"A long time ago, human beings were not like this, at that time human beings had two heads and two pairs of eyes, just like the front and back conjoined people, and at this time, human beings were also very powerful, fast and powerful, which was incomparable to people now.
Powerful human beings thought they could challenge God's authority, and they began to disobey God's discipline and wanted to make their own decisions.
So man provoked a war with God.
The final result can also be guessed, of course, man lost and had to submit to God again.
God saw the strength of man and believed that if this development continued, sooner or later man would be free from God's control.
So God came up with a way to split man in half, to separate his power, and to make man what he is now."
The story is basically over at this point
So, what does this have to do with love?
The love in Aristophanes' mouth is the absence, the absence of the fateful other half, and the fact that one may have to spend one's life to retrieve the other half, which has been separated by God.
In fact, Aristophanes told this story to explain what a philosopher is.
The word translated in ancient Greece as "the one who loves wisdom", and he wanted to use "the person who lacks wisdom" to express the philosopher's desire and unremitting pursuit of wisdom.
Of course, leaving aside this layer of meaning, the answer of the story itself to "what is love" is romantic enough and thought-provoking enough.