Duḥkha is the starting point for the
Yoga journey of four junctures from:
the symptom, as in Duḥkha or suffering,
to the cause, as in Avidyā or illusion,
to the goal, as in Kaivalya or independence;
via the tools, as in Aṣṭāṅga or 8 limbed path,
for the means, as in Viveka or discernment.
This ancient fourfold process is at the heart of
the teachings in Yoga, Āyurveda & Buddhism.