You should stick to the neutral style and don’t be overemotional.
The concept of an exploratory essay is that you start without an end in mind.
You don't necessarily know how you feel about a subject or what you want to say about the subject, you allow the research and your own direction to determine the outcome.
It cultivates ambiguity and complexity to allow more than one reading or response to the work." ("The Exploratory Essay: Enfranchising the Spririt of Enquiry in College Composition." "Recently I retired to my estates, determined to devote myself as far as I could to spending what little life I have left quietly and privately; it seemed to me then that the greatest favour I could do for my mind was to leave it in total idleness, caring for itself, concerned only with itself, calmly thinking of itself. The justification for this personal approach rests in part on the assumption that all people are similar; Montaigne implies that, if we look honestly and deeply into any person, we will find truths appropriate to all people.
I hoped it could do that more easily from then on since with the passage of time it had grown mature and put on weight."But I find——that, on the contrary, it bolted off like a runaway horse, taking far more trouble over itself than it ever did over anyone else; it gives birth to so many chimeras and fantastic monstrosities, one after another, without order or fitness, that, so as to contemplate at my ease their oddness and their strangeness, I began to keep a record of them, hoping in time to make my mind ashamed of itself."(Michel de Montaigne, "On Idleness." , trans.