1. The Lifeforce, you, the one who perceives what exists and what is needed and wanted. 2. That which is traditionally believed to be the vital principle or animating force within living beings. 3. Any supernatural being, such as a ghost. 4. That which constitutes one’s unseen, intangible being. 5. The essential and activating principle of a person; the will. 6. To impart courage, animation, or determination, or determination to; stimulate; encourage.