Bhagavad Gita Verse 17.14

देवता, ब्राह्मण, गुरु और ज्ञानीजनों का पूजन, पवित्रता, सरलता, ब्रह्मचर्य और अहिंसा —–यह शरीर सम्बन्धी तप कहा जाता है|

The worship of the Gods of Light; of the twice-born; worship and respect given to the religious teacher and the wise; worship and respect for all that is pure and true, all that represents justice and righteousness, virginity and non-violence, all of this brings tranquility and harmony to the body.