The Sivananda Yoga
training system aims to retain the vitality of the body, retard the decaying process, and decrease chance of disease, by simply and naturally cultivating the body. The system philosophies are summarized in 5 principles.

Five points of Yoga

Proper breathing: Pranayama
Exercise: Asanas
Relaxation: Savasana
Diet: Vegetarian. A yogic diet is encouraged, limited to sattvic foods, void of rajasic foods as well as tamasic foods
Positive thinking and meditation: Vedanta and Dhyana

Classes
A session of training typically starts with every practitioner resting in Savasana, and begin with Kapalabhati and Anuloma Viloma, preceding rounds of Surya namaskara, before the standard program of the 12 basic asanas. A session averages 90 minutes, and the traditional program may be followed flexibly by the instructor, allowing for some variation.