The youngster is keen to repay the club by bringing home a title before he departs, but admits there are high expectations on his shoulders to deliver
The 20-year-old wants to repay the commitment which his current club have shown him, and sees no better way to do it than by defeating Tigre in the second-leg of the final on Wednesday evening.
"My time is coming to an end," Lucas told Fifa.com.
"My heart is shocked, but I still have some training and a decisive game left. I really want to give Sao Paulo this title to give back all the love this club has given to me.
After impressing for both club and country, Moura sealed a reported €43m move to PSG during the summer, and he admits there is now pressure on him to perform ahead of his switch to France.
"I know everybody expects a lot from me, according to all I have experienced at this club so far. I am ready for that," he added.
"With the help of the guys and supporters who will fill the stadium, all the conditions are set to clinch the title."