The world itself is subject to constant agitation; how can your plan to lead a quiet contented peaceful life upon it succeed? It is like trying to float without any heaving or falling while being tossed about on the waves of the sea. Under such conditions, the best thing is to recognise the fact and not to worry about the unavoidable. (SSS Vol.1, p. 130)

When you are agitated by anger or hatred or agony, sip a little cold water; lie down quietly; sing a few Bhajan songs. Or, walk some long distance alone, pretty fast, so the pestering thoughts are driven into silence and the solitude; blood circulates faster and movement dulls the sharpness of the thought. (SSS Vol.4, p. 266)

Devotion and morality are as important for physical health as they are for mental health. They

free the mind from agitation, they feed it with joy and contentment; they quieten the nerves and help even bodily processes (SSS Vol.4, p. 151)

Every little moment or incident results in sound; only, you may not be able to hear, because the range of your ear is limited. The falling of an eyelid over the eye makes a sound, the dropping of dew on a petal makes a sound. Any little agitation disturbing the calm is bound to produce sound. The sound caused by the primal movement that resulted in the enveloping of Brahman by self-evolved illusion is the Pranavasabdha or Om. The Gayatri is the elaboration of that Pranava and so, it is now held so venerable that initiation into spiritual life is achieved by its contemplation. (SSS Vol.4, p. 56)