"To purify the mind the first prerequisite is pure food. But it is not always possible to ensure such purity in every respect at all times. To get over this difficulty the way out is to make an offering of the food to the Divine and regard it as a gift from God (Prasadam). All the impurities in the food are thereby removed.”

…Sathya Sai Baba, Purity of the mind, Divine Discourse, 25 May 1990

https://saispeaks.sathyasai.org/discourse/purity-mind-role-senses

“Through service, you realise that all beings are waves of the ocean of divinity. No other spiritual activity can bring you into the incessant contemplation of the ONENESS of all living beings. You feel another’s pain as your own. To see everyone else as yourself and yourself in everyone, that is the core of the sadhana of seva. It makes you humble before the suffering of others. The hardest heart is slowly softened into the softness of butter by the opportunities that seva offers.”

…Sathya Sai Baba, Chap 18 No bumps no jumps, SSS Speaks vol 13, 1975-77, Seva dal Conference, 15 Nov 1975

https://saispeaks.sathyasai.org/discourse/no-bumps-no-jumps#