Yoga sutra 1.31
duḥkha-daurmanasya-aṅgamejayatva-śvāsapraśvāsāḥ vikṣepa sahabhuvah
The symptoms of such mental agitation are:
The nine obstacles that may cause you to wonder off the spiritual path, as outlined by Patanjali in the previous sutra, present themselves via these four symptoms:
Suffering: an emotional wound
Negative thinking: thoughts which can bring despair
Restlessness: being physically unable to stay still, e.g. trembling limbs
Erratic breathing: when your breathing lacks harmony and is no longer rhythmic.
The above-mentioned symptoms, then, are symptoms of a troubled mind. To bring you back to yourself, the systematic repetition of AUM (ॐ) can be a useful tool to centre yourself. Once centred, the above-mentioned symptoms melt away.
Damian Cadman-Jones is an authorised teacher of Prana Vashya Yoga™