Irimi, which refers to the entering body, is the principle of entering and controlling maai. Irimi goes hand in hand with nagasu, inasu, noru, kuzushi, otosu etc. Seen from the san mi ittai concept, any moment should include a change of position, in this case entering, a change in technique and body.
Irimi is the principle of changing position and closing distance, while manipulating, striking or throwing the opponent.
What is essential to be able to do irimi without getting hit, intercepted or being unable to get in close is to have correct timing.