You're only trying to get a sensation, like tingling. Throbbing is good too.

Is this actual energy simulation that helps with this?
Yes, the attention activates the nerves, and you feel the energy as it moves along. It helps you to take notice of your energy body, to feel and control it, and this in turn helps you with the exit and navigation, especially at first.
The dreams are more a matter of the application of consciousness- anything that helps you with awareness helps with this.