Kaka was thrilled with his playing return for AC Milan in their 1-0 win over Udinese.
It was his first time in the stadium with a Milan jersey since May 2009.
"It was a great feeling and difficult to explain," he told Milan Channel.
"I spent all day thinking of the moment I'd come on. I will hold a fond memory of my Milan comeback.
"It was crucial to win today, as slowly the injured players are recovering and the team is getting stronger. This side can do well right to the end.
"I was out for a month and now lack match fitness, so it's difficult to say how long it'll take me to find my form.
"It is nice to know the fans expect something wonderful from you and to hear the chants from the crowd."
