These are beings who are suffering from passion / greed (raga) and delusion (moha). If they are denied their object of passion, they will suffer from aversion (dosa).
The following sutta quote shows how unenlightened beings who indulge in sensual pleasures, burn with sensual fever, and try to indulge in it even more. It's an addiction.
A person who is continuously suffering from delusion (moha) will not be able to see the consequences of their actions. Delusion intensifies passion / greed or aversion, and clouds one's mind and judgment. For e.g. it converts anger to rage, or converts sexual attraction to becoming overcome with sexual lust.
From MN 75:
"In the same way, Magandiya, sensual pleasures in the past were
painful to the touch, very hot & scorching; sensual pleasures in the
future will be painful to the touch, very hot & scorching; sensual
pleasures at present are painful to the touch, very hot & scorching;
but when beings are not free from passion for sensual pleasures —
devoured by sensual craving, burning with sensual fever — their
faculties are impaired, which is why, even though sensual pleasures
are actually painful to the touch, they have the skewed perception of
"Now suppose that there was a leper covered with sores & infections,
devoured by worms, picking the scabs off the openings of his wounds
with his nails, cauterizing his body over a pit of glowing embers. The
more he cauterized his body over the pit of glowing embers, the more
disgusting, foul-smelling, & putrid the openings of his wounds would
become, and yet he would feel a modicum of enjoyment & satisfaction
because of the itchiness of his wounds. In the same way, beings not
free from passion for sensual pleasures — devoured by sensual craving,
burning with sensual fever — indulge in sensual pleasures. The more
they indulge in sensual pleasures, the more their sensual craving
increases and the more they burn with sensual fever, and yet they feel
a modicum of enjoyment & satisfaction dependent on the five strings of