Concentration of Tears!
Tears is part of human emotions and they use it to express the way they feel from time to time. This is because the same tears that can be used to express pain can also be use to express happiness and be tagged as the tears of joy.
I would like to share the definition of concentration from the chemistry perspective below:
In chemistry, "concentrated" refers to a relatively large quantity of substance present in a unit amount of a mixture. Usually, this means there is a lot of a solute dissolved in a given solvent. A concentrated solution contains the maximum amount of solute that can be dissolved. Link
From the perspective of the chemist, the concentration of tears would be the dissolved tears.
On my own, I would have said the meaning is putting more attention on tears. But the idea of the chemist make more sense.
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