Absorbing others' pain and emotions can be dangerous for two reasons. 1. You may be taking on the other's karma by taking away their lessons. 2. This can be unnecessarily burdensome on you. Their energy can be caught in you in a variety of ways, some of which you may not notice right away. For instance energy-signatures of emotional pain could be magnetized to vulnerable parts of your system that could be dormant for many years. There are ways for empaths to cleanse after encounters with others stuff. Even periodic fasting can be helpful in cleansing memories of encounters of others caught in you cellular tissues.

In other words there are many other ways of healing without absorbing others pain and emotions.