Yep. There is just so much we can never even begin to know or understand. That's where the beauty/mystery lies in it all...
Happy to share some meditation resources with you. 'Anapana' or 'mindfulness of breathing' is a good place to start. If you Google 'Anapana' or 'Anapanasati' you should be able to find some helpful tips on what to do and how to keep up a practice.
If you need any more specific books/resources on how to maintain a practice then I'm happy to share them via email: michaeldevfay@gmail.com
M
🙏