Spirituality automatically leads to humility. When a flower develops into a fruit, the petals drop off on its own. When one becomes spiritual, the ego vanishes gradually on its own. A tree laden with fruits always bends low. Humility is a sign of greatness.
Many people think they cannot have knowledge or understanding of God without reading books. But hearing is better than reading, and seeing is better than hearing. Hearing about Benares is different from reading about it; but seeing Benares is different from either hearing or reading.
You speak of doing good to the world. Is the world such a small thing? And who are you, pray, to do good to the world? First realise God, see Him by means of spiritual discipline. If He imparts power you can do good to others; otherwise not.
Those who wish to attain God and progress in religious devotion, should particularly guard themselves against the snares of lust and wealth. Otherwise they can never attain perfection.
Who may be called a paramahamsa? He who, like a swan, can take the milk from a mixture of milk and water, leaving aside the water. He who, like an ant, can take the sugar from a mixture of sugar and sand, leaving aside the sand.
Those whose spiritual awareness has been awakened never make a false move. They don't have to avoid evil. They are so replete with love that whatever they do is a good action. They are fully conscious that they are not the doer of their actions, but only servants of God.
Wisdom leads to unity, but ignorance to separation.
So long as God seems to be outside and far away, there is ignorance.
But when God is realised within, that is true knowledge.