Astral travel is to leave the body and travel consciously in the astral plane.
This split actually takes place every night as we go to sleep, only we’re not normally aware of it since we’re lost in thoughts as we go to sleep, which then become the basis for our dreams. With astral projection however, we can learn to fall asleep consciously and experience the split, and can then consciously explore the astral plane.
Astral travel is a real life experience and is proveable to all who experience it. Below are posts on practices, exercises, and techniques for astral travel from ancient sacred texts.