Supports for steadying the mind (ekāgratā), drawn from Patañjali's Sūtras —
the Samādhi Pāda's objects of concentration and the inner saṃyamas of the
Vibhūti Pāda. Each holds a single support for an adjustable span, with an
opening and closing chime.
Sit upright and at ease. Hold the chosen support steadily; when attention
wanders, return to it without strain until the closing chime.