Meaning
Conditions or states (plural of haal), the successive spiritual states that pass over the seeker's heart.
Literally: states, circumstances
How Iqbal uses it
In Sufi usage ahwaal are the transient God-given states, distinct from the lasting stations (maqamat). Iqbal treats the soul's shifting ahwaal as the very pulse of a living, striving self.
See it in the verse