A collection of teachings on simplicity in Hinduism from Srimad Bhagavata Purana.
When there is the earth to lie upon, why trouble about a bed? When one's arm is readily available why require pillows? When there is the palm of one's hand, why seek for plates and utensils? When there is the atmosphere or a bark or other similar stuff to clothe oneself in, what need is there of silks? (Srimad Bhagavata, II.2.)
Are there no rags by the wayside? Do not trees yield their gifts? Have streams, that always support others, dried up? Is not God (Bhagavan Sri Krishna) the friend of those who have surrendered everything? Why then do the Wise wait upon the rich, who are blinded by and intoxicated with their wealth? (Srimad Bhagavata, II.2.)
He who has attained the Supreme Goal discards all such objects as name and form, and dwells as the embodiment of Infinite Consciousness and Bliss. (Atma Bodha, v.40)
The ascetic has no need for secrecy and he has nothing to keep or lock up. Foxes have holes, and birds of the air have nests, but the son of Bhagavan has no place which he calls his own. Every place is his; the earth's surface everywhere is a bed for him; the trees are his umbrellas, the moon his lantern; and all the folk he meets are his brothers and sisters, fathers and mothers providing him with food.