Bucs and Stars will contest tournament honours at Moses Mabhida Stadium on Saturday, having both advanced from the last-four on Heritage Day.
Lekgwathi, who sat out yesterday's bruising Soweto Derby, is wary of complacency creeping in at the last hurdle.
"Although we advanced into the final of the MTN8, as players we remain true to ourselves knowing that we have not achieved anything yet," Lekgwathi said in a regular column on his club's official website.
"Being in the final is one thing, but winning it is another thing all together. That is why for us yesterday’s win is already behind us as we know we have a huge mountain to climb on Saturday in Durban.
"Platinum Stars are not pushovers, the way they did their thing to be in the final is testament of the ability that team has to beat any opposition."
Lekgwathi is hopeful success in the domestic competition will inspire the team for an upcoming CAF Champions League semi-final with Tunisian giants Esperance.
"I want to take the opportunity to call on the fans again to travel to Durban and pack the stadium. It will be important for us to do well in this final as it could set the tone for us going forward," Lekgwathi said.
"We have an important match against Esperance of Tunis here in Orlando, and winning this (MTN8) final will give us the necessary inspiration to do well in the semi-final of the Champions League.
"But for now, our eyes are set on preparing well to win the match against Platinum Stars.
"We will on Thursday morning start preparations for that match and let us hope all goes well for us.
"Durban is home to us, so we believe we have it all in our favour to have a good game against Platinum Stars," concluded the veteran defender.