A surah does not have to begin with one fixed title or preface. Its opening may offer praise, declare God’s transcendence through glorification, state the purpose of revelation, pose a question, present an oath, or move immediately into a significant event.
Praise recognizes divine perfection and blessings; glorification affirms God’s freedom from defect. Both can establish the theological setting in which subsequent directions should be received.
Effect on interpretation: if an opening presents the Book as guidance, the ensuing discourse may be read in the light of that claim. If it begins with praise, the reminder of divine majesty informs the force of its following commands and admonitions.