The easiest perspective to understand a situation from is your own. If you look back on past experiences you can get a good idea of why you respond the way you do, what gets you enraged and perhaps what helps you stay calm.
But a helpful perspective to try and understand is the perspective of others. For example, when you and Person A have a disagreement if you’re only willing to see things from your point of view you won’t get a full picture of the situation.
As much as you have past experiences that effect the way you are, challenges and even things stressing you out, you’re not alone in that. And so if you remember that Person A has all those same things too, it might make their perspective easier to understand.
Let’s say Person A lies to you. From your perspective you might be angry/hurt that they lied and wished that they could have been honest. But when you make the effort to understand things from Person As perspective you might realise that they have always been someone that struggles with opening up. Or you’ll remember that since you haven’t taken their honesty well in the past the lie probably wasn’t coming from a cruel or malicious place.
That doesn’t mean you need to excuse bad behaviour but it serves as a reminder that situations aren’t always as shallow as we like to pretend they are.
Understand others isn’t about psychoanalysing or thinking that you know everything about why a person is the way they are, it’s just about having compassion.
Even if we don’t say it, it’s what we’d like extended to us, so why not do the same for others.