The Vishnu Purana is more popular than any other Purans in the Hinduism. However, the one which is having the aim of dispelling the aim of ignorance as the darkness of the Dark Age is the other Ramayana, which has the power of the Divine Wisdom.
This Ramayana is what the sages ask from the creator as about the answer for the problems of the Dark Age, the Kaliyuga. The Word Kal is for machines and the Yuga is the span of age.
The Age of the Machines, the modern age has the virus of doubt in all fields and the faculties of life, while eating, drinking, inhaling, exhaling and all goes to pollution and doubt, thus creating the thought pollution.
In the Adhyatam Ramayana (the Spiritual Ramayana), the answer about how the Omnipresent manifest the way for eliminating the ignorance of the age of machines is specially represent the way-out in the spiritual and thus the natural way. The way all that goes for it is totally different from what we know about the spirituality.
This is not a full version of the Ramayana; it is the essence of it in the purely spiritual way. We may wander here and there for simplicity of the divine knowledge and wisdom, but it comes with nature flow in the spiritual Ramayana. It is for the metaphysics and mysticism for all.