With all due respect, as for any ‘evidence’ of anything… In science, we can “prove” things in theoretical construct, but actually never quite “know” (read, well and truly KNOW – i.e., beyond the shadow of doubt).
Allow me to ‘throw a spanner into the works’ by asking you this: Have you ever considered that YOU ‘thought’ yourself into creation? On this plane? (I’m sure other forum members would greatly appreciate my omitting a dissertative discussion of thought creation.)
Do have children? Very close loved ones? Close friends? Have you ever experienced a moment when you ‘knew’ (but couldn’t well and truly KNOW – beyond any doubt) that something was wrong? Someone needed help? Did your ‘gut’ tell you something? Surely you’ve had such an experience at some point in your life.
Well, this is intuition. And intuition is one among other things that helps us function on this plane when we might not quite understand precisely what is occurring.
Have your ever dreamt (proper English 
) or thought of something, believed in something so ardently that, despite ‘logic and reason’, and despite what the world around you was ‘telling you’, you knew that such was so? Did ‘it’ come to pass? (This, too, is likely something that has happened to you at least once in your life, no?)
Have you ever, at some point in your life, so fervently desired something that you poured all of your thoughts, energy, and emotion into it? (Again, the likely answer is, ‘yes’.) Did ‘it’, or something similar, or even better, come to pass?
This would be the manifestation of a ‘thought form’. I.e., you ‘created’ on this physical plane an objective response to your thoughts, emotions. Why, then, trouble yourself so with needing to understand the ‘ins-and-outs’, down to the minutiae, of something you do naturally every day without labelling it “Magic”?
Allow me to brushstroke a mental painting for you: Are you a physician? (And if so, what is your primary area of specialisation?) I am – a physician, that is. And I teach trauma medicine and surgery. If you came to me with a particular ‘ailment’, would you presume that, in my position, I likely have a certain working knowledge base that you might not have? And would you require me to spend the next 10 years teaching you what I had to learn, and have since learnt over the previous 25 years before allowing me to treat you (or at least seriously considering my counsel)? Probably not. You’d likely allow me to treat you, and you’d likely adhere to any instruction I gave you. (My decades of practice of professional medicine are actually exceeded by even more decades of ‘magickal’ – with or without the ‘K’ - operation/ practice.)
Consider this, then: there are people who have sufficient experience in certain matters to adequately teach and advise you, whether or not you know every detail of the ‘inner-workings’ of absolutely everything there is to know about absolutely everything there is to know (not intending to sound like Douglas Adams – but the answer to everything is “42”, but not in ‘base 10’ mathematics).
And as for the term ‘atheist’, which has been quite bastardised in modern ‘English’… consider the fuller definition of the term (e.g., sceptic in proper English, or ‘skeptic’ in American ‘English’ – yes, I’m a language snob ). Disbelief in a Judaeo-Christian ‘Almighty’ does not equate to disbelief or scepticism in all things ‘supernatural’, as I believe you might say (given the subject line of your post).
On a parting note: relax, and follow whatever path or belief system ‘feels’ proper to you. Spend some time reading the interesting posts and replies by members on this forum – or any forum. Do some research. Find your truth.
Go well on your journey, and in all things, BE WELL!
MVS
) or thought of something, believed in something so ardently that, despite ‘logic and reason’, and despite what the world around you was ‘telling you’, you knew that such was so? Did ‘it’ come to pass? (This, too, is likely something that has happened to you at least once in your life, no?)