Naturally, Islâm, submission to the Lord of the Universe, ought to express itself in deeds. Allah desires the homage of formal worship, which must be performed several times a day by every individual, and on special occasions by the assembled faithful, led by one of them. This service, salât, acquired its strictly binding rules only after Mohammed's time, but already in his lifetime it consisted chiefly of the same elements as now: the recital of sacred texts, especially taken from the Revelation, certain postures of the body (standing, inclination, kneeling, prostration) with the face towards Mecca. This last particular and the language of the Revelation are the Arabian elements of the service, which is for the rest an imitation of Jewish and Christian rituals, so far as Mohammed knew them. There was no sacrament, consequently no priest to administer it; Islâm has always been the lay religion par excellence. Teaching and exhortation are the only spiritual help that the pious Mohammedan wants, and this simple care of souls is exercised without any ordination or consecration.
Fasting, for a month if possible, and longer if desired, was also an integral part of religious life and, by showing disregard of earthly joys, a proof of faith in Allah's promises for the world to come. Almsgiving, recommended above all other virtues, was not only to be practised in obedience to Allah's law and in faith in retribution, but it was to testify contempt of all earthly possessions
