I’ll restrict this to two primary emotions, fear and anger. There is no need to take loads of mushrooms or peyote, to completely lose the plot. It can happen in day to day life. One can become utterly lost on the emotional plane. The perception gets ever more selective and turns in on itself. All clarity vanishes, and any sense of wider perspective is abandoned. It happens by indulging in fear or anger.
Once fear gets a toe-hold it can magnify and amplify alarmingly, a deep pervading paranoia sets in. Under these circumstances the merest thing can be seen as a deep personal attack aimed at maiming or destruction. The slightest contrary opinion becomes a death threat. One figuratively puts up the barricades, lays the minefields, heats the boiling oil and readies the crossbows. One is perennially on the look-out for slights, snubs, attacks and the like. They aren’t there, they are largely imagined. And so, lost in fear, life becomes nightmarish. On edge one lashes out and destroys. One sees plots and intrigues on all sides and thereby actually generates some of these, because one starts playing secret squirrels and other related games. Tense as a tense thing on a tense day, one is like a porcupine. There is no reality simply an out of proportion fear. Threat is on all sides.
Once the red-mist of anger sets it, all one can see is ire and hitting back. One must destroy, avenge, make them pay and otherwise teach them a lesson. It burns, and it seethes. The perception clouds over and all there is that red-mist. Skewed thereby, a being whom you might otherwise love and care for becomes enemy number one, who must face sudden, complete and humiliating destruction, preferably over a prolonged period and in public so that everyone can see that your just and deserved vengeance has been done. There is no clarity, no wider perspective just the immediacy and longevity of that anger.
Maybe after the destruction has been wrought some sense of wider perspective returns by which time it is too late. Perhaps finally you return to your senses and calm. Perhaps you can then acknowledge that your perception has been more than a tad selective.
Having cued this up:
Have I ever been lost on the emotional plane?
Did it damage or wreak havoc in my life?