Time

i love how shaant always refers to the left side being strong.

in I Dont Care If Its The Moon its "you see my left side as my strong side and its pumping the song of a long night."

and in Teasing To Please its "if you pick my left side because you know how we do"

and in this song its "i've always thought the left was your strongest side"

hes refering to the heart, obviously.