The solstices and equinoxes have significant importance in many spiritual traditions due to their connection with the cycles of nature, which are often seen as reflective of spiritual and human experiences. This is due to the relationship of the Sun as the source of life, and the more metaphysical relationship of the Earth’s chakras to our own chakras.
We have recently published a German edition of Kriya Yoga: Continuing the Lineage of Enlightenment. You can now find a full commentary on the Yoga Sutras of Patanjali, in the book Kriya Yoga: Die Erleuchtungstradition fortsetzen (German Edition). This book is available on Kindle and paperback.
An Essential Guide to Kriya Yoga Practice contains all you need to know to begin practicing Kriya Yoga. If you are looking for one of the most effective approaches to Kriya Yoga, you will find it in this book. The book is read by the author, Ryan Kurczak, and has a running time of 8 hours.