[mike978]

For those curious about the trinity what it is and why it is important to Christian faith I highly recommend Delighting in the Trinity by Michael Reeves [1]

"...what kind of God could outstrip the attractions of all other things? Could any unitary, single-person god do so? Hardly, or at least not for long. Single-person gods must, by definition, have spent eternity in absolute solitude. Before creation, having no other persons with whom they could commune, they must have been entirely alone.

Love for others, then, cannot go very deep in them if they can go for eternity without it. And so, not being essentially loving, such gods are inevitably less than lovely. They may demand our worship, but they cannot win our hearts. They must be served with gritted teeth.

How wonderfully different it is with the triune God. In John 17:24, Jesus speaks of how the Father loved Him even before the creation of the world. That is the triune, living God: a Father, whose very being has eternally been about loving His Son, pouring out the Spirit of love and life on Him. Here is a God who is love, who is so full of life and blessing that for eternity He has been overflowing with it..."

[1] https://www.unionpublishing.org/resource/delighting-in-the-t...

[NemoNobody]

This is something best between you and God - let kno others tell you what this is, it is perhaps the most powerful thing ever revealed to us.

3 that equal 1.

It's a fundamental rule found everywhere - there is a softer voice within that will speak to of it but you have to ask it to tell you and then have ears to hear it.

[mike978]

While I agree that many of us are headed from different parts of the city or countryside, if we are Christians or seekers we are all headed to the same destination. So while our satnav path may look different, there are inevitably similar experiences along the way from which we can learn. Beyond that if you are a Christian you believe the Word will apply to all of those situations. Those who study the word can therefore offer insight. I believe this also includes truths like the trinity. So in those sense I would say no it's no purely internal. That being said yes, faith is head knowledge acting in anticipation from the heart as a relationship between you and God.

"It's a fundamental rule found everywhere - there is a softer voice within that will speak to of it but you have to ask it to tell you and then have ears to hear it." But without experience and until you learn to discern the softer voice you must test it against scripture, to know whose it is.