With Elizabeth Henrichson. Nidra is a Sanskrit term meaning "sleep." In yoga, yoga nidra is a meditation practice that induces a state of deep, but conscious relaxation. The goal of yoga nidra is to achieve a state of samadhi (intense concentration), enlightenment or bliss. $20. Seventh Wonder Holistic Spa, 4236 St. Johns Ave, Jacksonville. 904-381-8686. Seventh-Wonder.com.