This is a theoretical question about God (or about "a god").
If the best way to talk to God was not to talk to God at all, how would I know?
This is a theoretical question about God (or about "a god").
If the best way to talk to God was not to talk to God at all, how would I know?
This is not a "philosophical" question, but it is a good question. Allow me to offer a personal (thus not "philosophical") answer.
I am a secular, passionately Marxist, skeptical, hopeful being. I like to go into churches and pray. Why?
Because we are creatures of and participants in "communication." We are constructed to speak and be spoken to.
This is, to me, why "communion" and "communication" and "communism" share an etymology.
When we pray we speak in a way that exceeds the utility of "speech." Prayer is the most profound and "inductive" exercise of language.
There are two possible ways of interpreting your question --as referring to non-verbal praying, or as referring to not praying at all.
Either way, the most typical answers would be a) through the writings or traditions of your religion, b) through the agency of trusted religious figures and/or members of your religious community or c) through some form of direct communication from God to you. Most religious people operate through some combination of these three.
You might further ask how you might validate the guidance you receive, but that's a separate question.
I'm not clear on your initial statement (a god which might not be God?), so this is to answer the second part (quotes and comma added):
If the best way to talk to God [were] to be "not to talk to God at all", how would I know?
This presupposes first that there is God or a god to talk to. Also, to forward the argument, let's assume that it is actually best not to attempt to pray/talk to God. So, how would anyone know this?
First one would have to have a worldview/theology in which to understand the purpose of talking to God. If God himself doesn't command us not to talk to him, we would have to understand it from the teachings or theology of the worldview we had.
For example, the Christian religion gives many examples of prayer, and teaches that people should pray - for example, the disciples asked Jesus "Teach us how to pray" - and he obliged them. Jesus himself is described as praying many times and then is described as giving us an example of how to live, so clearly Christianity would not fit into this mold - it argues for believers to pray and have a relationship with God and/or Jesus.
Other worldviews may not come to this view, but that would be determined through their assumptions about God and the world, and would need to be determined through investigation into their teachings and practice. For example, my understanding of Buddhism is that you do not pray in the sense that you talk to God, but you do meditate, which is intended to further one's spiritual life, but apart from God/god(s). This is based on Buddhism's understanding of the world and what our purpose as humans is in the world.
So, in the end, the idea of whether you should or need to talk to God or pray just flows naturally from an understanding of a worldview or religion. Even in the case that God himself, or one of his prophets, specifically tells you to pray or not to pray, that will be a command that is based on the presuppositions and framework of a specific religion or worldview only, and other worldviews would not be bound to it. You still would need to choose which worldview that you wish to subscribe to in order to understand the application of your question to yourself.
You equivocate between god and God; which leads me to suspect that perhaps you possess or struggling to possess a non-traditional conception of god/God.
Un-named and unknown; or named and unknown and yet there - it might be called the numinous or spiritual; an inner or inward dimension; one in a way can only lean which way the spirit leans - which takes a certain kind of listening and divining.