Meaning
Tumult, uproar, or rebellious commotion, both the clamour outside and the ferment within.
Literally: tumult, insurrection
How Iqbal uses it
Iqbal embraces shorish as the creative tumult of a restless self and a restless age; the heart in honest uproar is closer to truth than the heart lulled into silence. He treats this ferment as the precondition of renewal.