Love is a matter of heart?

When they say love is a matter of heart, why do people search for it with their eyes
When it should be all about feelings, why so much emphasis on what one hears and sees
Where is heart when all you hear, see and touch is sent to your brain
So they say love is a matter of heart all in vain
The judgments are made by the brain
Then the heart ascertains
It is a matter of brain at the start
Maybe with time, it tugs a few strings of the heart