Plain UnderstandingWe make a solemn, exclusive pact with our Creator: we dedicate our absolute devotion to Him alone, and we recognize that we are utterly powerless to fulfill this devotion without His direct, continuous assistance.
Historical Context (Ibn Kathir)In a famous Hadith Qudsi, Allah states that Al-Fatihah is divided into two halves between Himself and His servant. The first four verses belong to God (Praise), but when the servant recites this exact verse, Allah responds: "This is between Me and My servant, and My servant shall have what he asks for." It is the precise pivot from praising the King to intimately pleading with Him.
Divine Wisdom (Ibn Ata'illah)"Nothing is difficult if you seek it through your Lord; nothing is easy if you seek it through yourself." Saying 'You alone we worship' frees you from the idolatry of the world, but saying 'You alone we ask for help' frees you from the hidden arrogance of trusting your own spiritual abilities.