The unicorn and his lion, the anima and his animus

". . . [the left hemisphere] works its necessary effects at an intermediate stage. Problems arise when this is treated as the end stage. . . [T]he Master realises the need for an emissary to do certain work on his behalf (which he, the Master, must not involve himself with) and report back to him. That is why he appoints the emissary in the first place. The emissary, however, knowing less than the Master, thinks he knows everything and considers himself the real Master, thus failing to carry out his duty to report back. The right hemisphere’s view is inclusive, 'both/and', synthetic, integrative; it realises the need for both. The left hemisphere’s view is exclusive, 'either/or', analytic and fragmentary – but, crucially, unaware of what it is missing. It therefore thinks it can go it alone. . . .
". . . reductionism has become a disease, a viewpoint lacking both intellectual sophistication and emotional depth, which is blighting our ability to understand what is happening and what we need to do about it. My current thoughts are directed towards illuminating what I see as a truer picture, a more helpful and, I believe, a more hopeful way of seeing our situation here on this planet, while we still have time.
". . . There are, it seems to me, four main pathways to the truth: science, reason, intuition and imagination. I also believe strongly that any world view that tries to get by without paying due respect to all four of these is bound to fail. Each on its own has its virtues and its vices, its gifts and its inherent dangers: only by respecting each and all together can we learn to act wisely. And each is a blend of elements contributed by either hemisphere.
     "However, the same proviso applies in each case, namely that for each to be successful, what the left hemisphere can offer must be used in service of what the right hemisphere knows and sees, not the other way round. This is as important in the case of science as in that of imagination, in the case of reason as in that of intuition. The left hemisphere is a wonderful servant, but a very poor master.
     "We also need to be aware of the sheer extent to which the left hemisphere is, in the most down-to-earth, empirically verifiable way, less reliable than the right – in matters of attention, perception, judgment, emotional understanding, and indeed intelligence as it is conventionally understood. And that means that we should be appropriately sceptical of the left hemisphere’s vision of a mechanistic world, an atomistic society, a world in which competition is more important than collaboration; a world in which nature is a heap of resource there for our exploitation, in which only humans count, and yet humans are only machines – not even very good ones, at that; a world curiously stripped of depth, colour and value. This is not the intelligent, if hard-nosed, view that its espousers comfort themselves by making it out to be; just a sterile fantasy, the product of a lack of imagination, which makes it easier for us to manipulate what we no longer understand. But it is a fantasy that displaces and renders inaccessible the vibrant, living, profoundly creative world that it was our fortune to inherit – until we squandered our inheritance.
Time is running out, and the way we think, which got us into this mess, will not be enough to get us out of it. . . . We need, I believe, to see the world with new eyes. . . ."

     Iain McGilchrist, "Preface to the new expanded edition," The master and his emissary:  the divided brain and the making of the modern world, New expanded edition (New Haven, CT:  Yale University Press, 2019 [2010]), xxiv-xxvi.  Headline:  Fr. M. C. D'Arcy, The mind and heart of love:  Lion and unicorn:  a study of eros and agape (1947), not cited by McGilchrist.