Feet
Under Feet = Conquering
Psa. 8:6 Thou makest him to have dominion over the works of thy hands; Thou hast put all things under his feet:
Psa. 18:38 I will smite them through, so that they shall not be able to rise: They shall fall under my feet.
Psa. 47:3 He subdueth peoples under us, And nations under our feet.
Is. 26:5-6 For he hath brought down them that dwell on high, the lofty city: he layeth it low, he layeth it low even to the ground; he bringeth it even to the dust. The foot shall tread it down; even the feet of the poor, and the steps of the needy.