Beneficial knowledge effectuates two matters:
1. Knowledge of Allah and what befits Him of Beautiful Names, Lofty Attributes, and Awe-Inspiring Actions. This necessarillleads to venerating Him, glorifying Him, having bfear of Him, being in awe of Him, loving Him, having hope in Him, putting ones reliance in Him, being content with His decree, and bearing His trials with patience.
2. Knowledge of what He loves and is pleased with and that which He detests and angers him of beliefs, actions - the outer and inner, and statements. This leads one to rush towards performing that which Allah loves and is pleased with and avoiding all that He detests and angers Him.