Mishna:
. . . Or someone who was a far distance . . .
Gemora: If one was far away when the Pesach was brought for him, Rav Sheshes says that he has not fulfilled his obligation.
The Gemora 93b brings the opinion of rabbi Eliezer that just one step out of the Azarah is considered a far distance away.
Just one step determines a man’s destiny . . .
Had he gone one step into the Azarah, he would have had the Zechus of bringing the Pesach along with the rest of Klal Yisrael. Since he didn’t go that one step, he must bring it alone on Pesach Sheini.
In a similar manner, one who is one step outside of the door of the Shul is not considered as having davened with a Minyan.
The Tefilah [prayer] of a Tzibur [congregation] is not rejected.
One step determines his destiny . . .
Will his Tefilah be accepted with the Tzibur, or will it get rejected . . . .