I’ve been having an ongoing existential awakening and I really want to lean into it, the natural world, the full “life” experience. What can I read?

Hey there!

So, ongoing existential crisis led to an existential awakening. I've been feeling grounded, calmer, less rushed (more purpose), and more aware of how I'm spending my time. I've even been dabbling in exploring my spiritual side. I'll accept any recommendations, but I'm currently drawn to:

• learning about the natural world (Earth, space, etc.)
• being more mindful of nature
• being mindful in general
• mortality
• spirituality or religion (raised catholic, but current religion is essentially accepting anything, atheism or not, because who really knows, right? But any religious education is interesting)
• philosophy

Thank you!!