Natyashastra
सम्प्रणष्टेन्द्रियमनाः शोकौत्सुक्योपवेशने । प्रसार्य बाहू शिथिलौ तथा श्रोपाश्रयाश्रितः ॥ २०६॥
In sitting due to grief or anxiety, when the mind and senses seem lost, the arms are to be stretched out loosely, and the body is to rest upon a support.
english translation
sampraNaSTendriyamanAH zokautsukyopavezane । prasArya bAhU zithilau tathA zropAzrayAzritaH ॥ 206॥
hk transliteration by Sanscript