All spiritual knowledge is for well being of our spirit that is unfortunately turned into religious dogma.
Spiritual knowledge is the food / provision (rizq) for our internal world which we must possess all the time. This Spiritual knowledge when turns into spiritual energy, helps us to boost our happiness, peace and overcome all type of tension and depression.
Spiritual knowledge has nothing to do with materialistic knowledge or attachments however it helps us to develop us to face the cruel / unjust world. Worldly knowledge can be taught in school and colleges that helps us to understand the immediate necessities of life or material world.
Spiritual knowledge helps us to face the challenges of the material world, it control or balance all type of fear, greed, temptation and insecurities that causes imbalances in our life.
The spiritual knowledge and materialistic knowledge does not complement each other on the contrary the spiritual knowledge is a shield that stops the worldly attachments to enter in our pure, uncorrupted system of conscience.