Meera’s perception of her in-laws as the enemy was intense. So was her struggle with her own ‘ugly’ emotions

‘Anger, bitterness, hostility and the desire for revenge banish the positive emotions of empathy, compassion and kindness. This banishment has a psychic cost.’ Photograph: Siro Rodenas Cortes/Getty Images

In an increasingly polarised world, dividing individuals into “us v them” and “allies and enemies” has become a pervasive mindset.

We arrange ourselves as “for” or “against”, whether it be political parties, vaccinations, climate change or the voice to parliament. We align ourselves with different sides of various wars. The negative effect of this on society is frequently noted. However, the more subtle and harmful effects on our mental health are often overlooked.