WHAT IS LOVE?

Student asks teacher: "What is Love?"
teacher said: if you want answer of your question,
go to wheat field, choose the biggest wheat and come back.
But the RULE is: you can go through them ONLY ONCE
and CAN'T TURN BACK TO PICK.
Student went to the field, through 1 row.
He saw 1 big wheat but he wonders maybe there is a bigger one later.
Then he saw another bigger one but maybe there is an even bigger one waiting for him.
Later, when he finished more than half of the wheat field,
he starts to realize that the wheat is not as big as previous one he saw.
He knew he has missed the biggest one and he regretted.
So he ended and went back to teacher with empty hand.
Teacher told him;
"THIS IS LOVE, you keep looking for better ones
but when later you realize; you have missed the person
who loves you TRULY FROM HEART."