If someone's profile is set to private, it means they have chosen not to share their information or posts with the general public or users they haven't accepted as friends.
Attempting to request friends or access private profiles without the user's consent would be a violation of their privacy and against the terms of service of most social media platforms, including Facebook.
If you want to connect with someone on Facebook whose profile is set to private, you can consider sending them a polite and friendly message explaining why you'd like to connect and asking them to accept your friend request if they're comfortable doing so. Keep in mind that they may choose not to accept your request, and it's essential to respect their decision and privacy choices.