Sri Aurobindo
Letters of Sri Aurobindo
Volume 1
It means both the individual and the cosmic Nature. The Divine is concealed in the secret heart of all things and all beings. The phrase is an allusion to the constant Vedic and Upanishadic expression Hṛdaye guhāyām, nihitaṃ guhāyām, gūdham guhāyām [hidden in the secret cavern of the heart]. What is meant, in the individual nature, is the secret psychic centre which is covered up in man by egoistic emotion and feeling and desire.
It is not necessary to translate the word, Nature. Any word or epithet which will convey the idea of the secret centre of the being or the consciousness, will do equally well.