Lust, Greed, Anger, Attachment - These are all paths to hell.
Whatever may be guru - he may be a lunatic or a common person. Once you have accepted him, he is the lord of lords.
Every line of the Hanuman Chalisa is a Mahamantra.
See God in everyone. It is deception to teach by individual differences and karma.
Love everyone, serve everyone, remember God, and tell the truth.
Cleanse the mirror of your heart, and you will see God.