I remember a lady on an Openhand Facilitator course who slipped into 'Tongues' not having previously done. None of us understood a word of what she was saying, and nor did she, but to the whole group, the vocalisation was more powerful than any words could have been!

Whether it's your higher self or not, the key is how does it make you feel? If that feels aligned and empowering, if it brings forth a new aspect of what you feel to be aligned beingness, then my suggestion is to let it flow.

Wishing you well with that.

Open Praying Emoji