Even he has a desire to reach 1000 goals, this is not a target that he must achieve. I read from
media, He also said that with terms
if that happen, so it will perfect for him, but not chasing it. He is aware of his declining abilities, we can see from the decreasing accuracy of his free kicks. Of course, as long as he is still playing, he will continue to maximize all his abilities to reach 1000 goals, but he remains realistic with his hopes.
He will retire after reaching this objective and might be at 1007. Remember my words unless some serious problem happened like health or familial issues that broke everything for him, otherwise I am confident that this is an objective for him that might be harder to achieve in top European leagues.
I doubt he will say such thing in public to avoid being criticised by some media and people. Cristiano Ronaldo is an ambitious guy and he enjoyed beating Pele achievement as top scorer and since his rival Messi continues playing, he will try to keep some distance from him in terms of goals to stay always first.