It is not necessary to meet your guru on the physical plane. The guru is not external.
When you are sad or in pain or sick or you witness any cremation then you actually learn the many truths of life.
Every line of the Hanuman Chalisa is a Mahamantra.
Everything is impermanent, except the love of God.
Whoever works for God, his work will be done by itself.
Lust, Greed, Anger, Attachment - These are all paths to hell.