“Continuing the idea of Śikṣaṇa,
it is possible to put further categories into Sādhana.
It is important,
as often people have little distinction between exercise and Yoga.
According to texts and great masters Sādhana is not just at the body level,
but at the Indriya level, the mind level and possibly even further.”
– TKV Desikachar France 1983