In the lowest life forms of animal life like fish and insects, life is governed by only the inborn instinct. There is no learning or much of any intelligence. The main aspiration is to search for food, for warm surroundings, move towards comfort, and avoiding harmful areas. At this level, the physiological life form goes through a single dimension. As it evolves to higher forms, growth by simple binary fission of multiplication and mutation gives way to selective genetic modifications with combination of genes through sexual reproduction.

As higher animals are formed, the instincts continue and gradually certain amount of intelligence and learning process takes place in higher mammals from trial and error. Later, some teaching from parent to child is seen among apes, elephants and other higher animals. Here, the driving force for life includes search for food and good surroundings and also search of proper mates for genetic propagation. So, now we see Artha and Kãma in this which now goes in two dimensions at a time. These are related to desires of activities of seeking material benefits for food and shelter and for physical pleasures of comfort including sexual activities for propagation of the species. They engage in activities related to seeking food, self preservation, propagation of life and progeny and preservation of their species. They all have an instinct for these acts which is improved by the learning.

The evolution of human civilization is no different but it has more dimensions now due to the development of intelligence with conscience. It goes through a third dimension of understanding of the self and discrimination between what is right and wrong, that is Dharma. Here the learning leads to improvement in knowledge. Knowledge that is received in this way has its limitations. This knowledge is just the logical analysis of accumulated information of perception received by the five senses. When the perception goes wrong, the logic goes wrong and the analysis goes wrong and so the knowledge so received becomes deceptive and inaccurate.

Initially, the logical understanding mind analyses the causes of pleasures and pain, the comforts and miseries seen due to natural phenomena as a act of a God of Anger and the One that will magically give gifts and boons for our prayers. The Human Soul with intelligence gradually evolves beyond that spiritually in the understanding of the concept of God. Here we need a dimension of deep thinking and concentration leading to meditation with intuition. This intuitive knowledge is called Jnãna which gives the fourth dimension of our thinking capacity, the First Spiritual Dimension.