To know more about Sri Aurobindo’s Yoga I would suggest the following apart from the talks you have been listening.
Read books of Sri Aurobindo and the Mother. Start with small booklets of the Mother and magazines such as the All India Magazine. Then as you get accustomed to the ideas and the language you can dip deeper into the books.
Read books on the life of Sri Aurobindo such as Twelve years with Sri Aurobindo and Sri Aurobindo, his life unique.
Visit some nearby centre or study circle dedicated to Sri Aurobindo and the Mother.
Plan a visit to the Sri Aurobindo Ashram when you feel you are ready and the urge to understand the yoga grows stronger.
