Strictly speaking, this chant is not always considered to be a true and recognized mantra. It is, however, a chant and a phrase that is used in the same way as one would use a mantra; which gives it the unique power of a mantra.
Moreover, this Pali phrase has taken on the status of a mantra and many Buddhists chant it repeatedly in its original Pali.
The Benefits Of Chanting Sabbe Satta Sukhi Hontu (May All Beings Be Happy)
This chant can help us to transform our habituated mental patterns that are infused with negativity into mental patterns that are much more embracing of the practices of Buddhism as a whole.
Use the mantra after an interaction with a particularly challenging co-worker, use it after a difficult argument with a family member or a friend, or simply recite it as a means of helping you to break down those mental barriers so that you can think only loving-kindness towards each and every person that you interact with on a daily basis.
When chanting this mantra it is good to focus your attention on your heart and also imagine that your heart is sending out beams of light to those around us. The entire purpose of this chant is to share the love. It is a beautiful way to spread the love.