Answer this question to the best of your ability:
What are some reputable online platforms that offer courses on advanced meditation techniques?
There are a number of respected online platforms that offer courses in advanced meditation techniques. Websites like Coursera, edX, and Udemy often have courses taught by professionals in the field of mindfulness and meditation. For example, Coursera's "Mindfulness Practices for Everyday Life" course is a good starting point. On the other hand, platforms such as Gaia and Mindful are solely focused on meditation content and offer a wealth of knowledge from experienced teachers.