A heart. A note. A poem. A hug. Or a simple whisper of the word love.
If a doctor should diagnos the symptons of a broken heart. They would conclude, it's a heart sign of love. If an investigator had to investigate a message within a note. His conclusion would be the same, as the doctor. A love sign was the cause of his problems.
Words, written in a poetic style to a lover. Would only impress that lover's a little more. That a hug would soon follow.
The eyes. The eyes of a dreamer of truth. The voice. The voice that's simmering to your ears. That it has the power to create love.
These are love signs that touches us the most. Jesus has his signs working in the truth. We have of love signs working deep within us.