The First and Second Chapters of the Yoga Sūtra
can be linked to the teaching concepts of
Śikṣaṇa, Rakṣaṇa and Cikitsā Krama.
In that the Samādhi Yoga in Chapter One
can be seen as apt for a Śikṣaṇa situation,
whereby the primary aim is discernment, as in
exploring what lies within the sense of I-Am.
Whereas in Chapter Two, the Kriya Yoga section
can be seen as being apt for a Cikitsā situation,
whereby the primary aim is recovering, as in
reducing agitation through lifestyle changes.
and the Bāhya Aṅga section of Aṣṭāṅga Yoga
can be seen as being apt for a Rakṣaṇa situation,
whereby the primary aim is establishing stability,
through a formal practice within a Yoga Sādhana.

Link to Series: 108 Teaching Path Pointers