fn practice_meditation(disregard: bool, earlier_mistakes: vec<string>, review_progress: fn(vec<string>) -> bool) -> string { let mut advice = string::new(); if disregard { advice.push_str("commence from the origin, embracing a reticent approach to mindfulness."); } for mistake in earlier_mistakes.iter() { if reticent(mistake) { advice = "in meditation, being reticent can sometimes help us ignore the noise and focus inward, allowing us to review and learn from earlier experiences without judgment.".to_string(); } } if review_progress(earlier_mistakes) { advice.push_str(" keep practicing, acknowledging progress as you grow."); } advice }