The Individual Nature : 2

2.
All stimuli set the organism in vibration, and this disturbs its equilibrium.

In this process there is release of nervous energy, affecting, not merely the body, but, to a great extent, even the mind. The pleasure that is experienced at the time of being stimulated by an 'intended' external agency is really the warmth and affection felt in yielding to an inner command of the physical nature, when motor reactions take place in the organism, on account of the magnetic properties called forth in it.

What ravishes the personality and makes it leap up in ecstasy at the time of a desirable objective reaction in the physical world is the total disintegration of the parts of this organism and the peace that follows as a consequence of the cessation of this disturbance, on the fulfilment of the purpose of this reaction.

All instinctive pleasure is ultimately the recognition of harmony and equilibrium and joy in consciousness on account of the banishing of disturbance in it by the fulfilment of the meaning of the instinct through the possession and utilisation of the object which plays the role of an agent in loosening and removing the nervous and psychic tension created by the expression of the instinct.

Swami Krishnananda
To be continued  ...