Hiki Komi is the principle of drawing the opponent.
Hiki Komi means to pull the opponent in, drawing him towards you. Suki should be created deliberately to invite the opponent to attack. As the opponent attacks, you should apply Hiki Komi and draw him in towards yourself exposing his weak spot. Hence, Hiki Komi is an application of Sente.
The images below are Kaisetsu from Jitte, where you offer Suki by raising your hands. The result should be that the opponent needs to reach deeply forcing him to step forward after kicking.