CLEAN : PROFILE: Naomi Osaka, Japanese tennis player

The video begins with a greeting and setup instructions. It then transitions into a discussion about personal goals, particularly in the context of sports achievements like winning a Grand Slam. The speaker expresses a desire to aim for gold and concludes with congratulations.

What is the overall tone of the speaker throughout the text?

What does the speaker mean by 'Congratulations' at the end of the text?