If the Spirit is One, why do the reports of the experience of the Spirit differ so widely? The fact is that there is a variety of spiritual experience, and this phenomenon has to be understood and explained.
Spiritual experiences can be sporadic, or they can be attained by pursuing a methodised effort leading to the union of the individual with the universal and the transcendental spiritual reality. When the experience is attained by methodised effort, it can be called yogic experience. When we study the records of the experiences of those who have practised yoga, we find that they give different and even conflicting accounts of their experiences of the Spirit.
This book attempts at introducing a study of this phenomenon, in the light of the integral experience and realisations, which has been described in the Veda' Upanishads, Gita, and lastly, in Sri Aurobindo's Integral Yoga, which reaffirms the integral experience as recorded in the texts of the Veda, Upanishads and the Gita as also those of Tantra, but which has affirmed the possibility and actualisation of the integration and synthesis of Matter and Spirit under the sovereignty of the Spirit.
According to Sri Aurobindo, — and all experiences and realisations of Sri Aurobindo have been confirmed by the Mother, — the Spirit is infinite, and there is a different