Goals from Harris Tchilimbou and Sinethemba Jantjie at Goble Park saw the Bethlehem-based side move to ninth on the table with 11 points from 10 games.
Ea Lla Koto have lined up a friendly during the FIFA break, and will seek to rise up the standings when they resume their league campaign against visiting Golden Arrows on October 24.
"We just have to remain humble. Yes, nice win, nice three points, a completely deserved result," Eymael tells snl24.com/kickoff.
"[A] matter of [many] opportunities created, and this time we succeeded to put two balls at the end of the net. We could have put three or four in but again with two I'm happy.
"We also kept again a clean sheet. You know in the last four games we only conceded one goal and on the deflection against Chippa United. If not it could have been four clean sheets in a row, but it's okay.
"The boys did really well. I'm very proud of my players, they fought a lot, reacted very well against a very good team of Celtic, who had a very good start of season.
"Yeah, it was a good boost just before the FIFA break. We have to play again tomorrow against the national team of Lesotho. We play a friendly tomorrow, then I will give [players] some days free.
"For the rest, like I said, we scored some nice goals, nice combinations of play. And also to avoid Celtic to create some big chances because we defended very well and we applied very well the plan of play you know.
"My players have shown to everyone that when they apply everything altogether we still remain a dangerous team. But when everybody is not playing at 100% then it becomes a big problem. It's not only for us, it's also for other teams you know.
"Our strength is the collective you know, it's unity in the team, it's the discipline and the fighting spirit ... because we don't have our own Ronaldo or Messi in the team huh? For us it is more about the collective."