A man who is averse to harming even the wind knows the sorrow of all living things.
To understand oneself profoundly, one needs balance. Neither renunciation nor acquiescence.
Fasting in the monastic community is considered an ascetic practice, a “dhutanga” practice. Dhutanga means “to shake up” or “invigoration”. The Buddha, as is well known, emphasized moderation, the Middle Way that avoids extremes, in all things. Fasting is an additional method that one can take up, with supervision, for a time.
One should not injure, subjugate, enslave, torture, or kill any animal, living being, organism, or sentient being. Just as suffering is painful to you, in the same way it is painful, disquieting and terrifying to all animals, living beings, organisms and sentient beings.
He it is, the innermost one, who awakens my being with his deep hidden touches. He it is who puts his enchantment upon these eyes and joyfully plays on the chords of my heart in varied cadence of pleasure and pain.

