Zum höheren Selbst erwachen. Das Herz dem Bewusstsein des Lichts öffnen

I'm curious about the personal experiences or philosophies that motivated the emphasis on higher self awareness and how that shapes the advice given.

Some practices felt surprisingly accessible and powerful — has anyone experienced noticeable changes after trying them out?

With so many different metaphysical ideas out there, I wonder what led to the selection and presentation of these particular teachings.