Quantum Physics: Light photons behave differently, taking on the form of particles or waves, depending on whether or not they are being watching.
Botony: plants stress out if we think about burning them.
Daily Life: Can your sad thoughts produce tears? No? Never mind (ya heart of steel)
Yes? That's your mind integrating with matter
Medical Science: The placebo effect, believing something will cure you causing the cure, is extremely well-documented in science
Phenomenology: Do you think you're seeing the world of matter? Not really. You're seeing hallucinations created by your visual cortex that represent the outside world. The color purple is just your body's response to a certain wavelength of light. What's more, your brain (the thalumus) filters out the vast majority of the stimuli reaching you. Not hearing the ticking clock any more? Exactly.
And more intriguing rabbit holes to peruse and to absorb the magic of, allowing it to transform your world when you return: