Islamic acts derive from the faith and law of Islam and include beliefs about God, forms of piety and expressions of faith (such as writing religious poetry, wearing a turban, or going on the pilgrimage to Mecca).
The same distinction holds for public life. Islam makes certain demands on its adherents, such as making war only under specified conditions and paying prescribed taxes; fulfilling these requirements "expresses Islam as a faith" and are therefore Islamic. Other features of public life are not obligatory, do not express Islamic faith, and are thus Islamic these include the withdrawal of subjects from political and military affairs, weak loyalties to governments.