You must know that there are different tastes. There are also different powers of digestion... different temperaments... differences in the capacity to comprehend.
If you desire to be pure, have firm faith, and slowly go on with your devotional practices without wasting your energy in useless scriptural discussions and arguments. Your little brain will otherwise be muddled.
You see many stars in the sky at night, but not when the sun rises. Can you therefore say that there are no stars in the heavens during the day? Because you cannot find God in the days of your ignorance, say not that there is no God.
The rishis of old attained the Knowledge of Brahman. One cannot have this so long as there is the slightest trace of worldliness. How hard the rishis laboured ! Early in the morning they would go away from the hermitage, and would spend the whole day in solitude, meditating on Brahman. At night they would return to the hermitage and eat a little fruit or roots. They kept their mind aloof from the objects of sight, hearing, touch, and other things of a worldly nature. Only thus did they realize Brahman as their own inner conciousness.
Make your meditation a continuous state of mind. A great worship is going on all the time, so nothing should be neglected or excluded from your constant meditative awareness.
It's enough to have faith in one aspect of God. You have faith in God without form. That is very good. But never get into your head that your faith alone is true and every other is false. Know for certain that God without form is real and that God with form is also real. Then hold fast to whichever faith appeals to you.
The sun can give heat and light to the whole world, but he cannot do so when the clouds shut out his rays. Similarly as long as egotism veils the heart, God cannot shine upon it.
As for myself, I look upon all women as my Mother. This is a very pure attitude of mind. There is no risk or danger in it. To look upon a woman as one's sister is also not bad. But the other attitudes are very difficult and dangerous. It is almost impossible to keep to the purity of the ideal.
It is on account of the ego that one is not able to see God. In front of the door of God's mansion lies the stump of ego. One cannot enter the mansion without jumping over the stump.
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.
A truly religious man should think that other religions also have many paths leading to the truth.
One should always maintain an attitude of respect towards other religions. Dispute not, as you rest firmly on your own faith and opinion, allow others also equal liberty to stand by their own faith and opinion.