The first and second limbs of the classical eight-limbed Yoga system constitute essential elements for application in the ethical treatment of animals as enacted in the practice of yoga. The first part of this chapter provides a brief introduction to the first two (of five) principles of “restraint” (yama), namely, non-harm (ahiṃsā) and truth (satya). In the second part of the chapter we consider the last two (of five) types of “observance” (niyama), namely, self-study/recitation or study of scripture (svādhyāya) and devotion to God (īśvara-praṇidhāna). The aim is to show how these restraints and observances serve individually and collectively to radically reduce if not eliminate the practicing yogin’s imposition on animals and, positively, to bring awareness of animals as conscious beings (puruṣa), non different in essence from human beings.