The feeling of warmth is good. It is the sign of an increase in energy in the being. This energy must be however directed towards good things such as gaining knowledge or service of God.
As to ghosts, just stop thinking or worrying about them. They are poor, unhappy creatures with no real power except the fear they may induce in susceptible persons through their contact. If you have no fear, they cannot harm you in any way.
Affectionately,
Alok Da


