Compassion ('Karuṇā') is the wish for all beings to be free from suffering. In this guided meditation, Ajahn Dhammasiha recommends to use a little Mantra either in English: 

Or else in Pali (or both, if you prefer 😊): 

Additionally, we can focus on wishing to all beings to be free from the causes that are ultimately generating their suffering. If they can abandon the causes, their suffering will end as well: 

Compassion is one of the four 'Divine Abidings' ('Brahmavihāra'), but curiously appears to be much more rarely practised in a formal way than Loving Kindness ('Mettā'). But in some situations, it may be a more skilfull approach than Mettā. E.g. when we are dealing with a very difficult person or group, who are causing great harm to us and others, it can be easier to develop compassion to them than Loving Kindness. In particular if we focus on wishing them to be freed from their hatred and delusion.

More about Dhammagiri Forest Hermitage:

https://www.dhammagiri.net/news

https://www.youtube.com/channel/UCJINt0JJBfFm_x0FZcU9QJw

https://tinyletter.com/dhammagiri/archive

https://open.spotify.com/show/0SHWfWEGkO8OAtSWNJlqyD

https://podcasts.apple.com/us/podcast/dhammagiri-buddhist-podcasts/id1534539834

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