I have observed that religious practice is not a precondition either of ethical conduct or of happiness itself. I have also suggested that, whether a person practices religion or not, the spiritual qualities of love and compassion, patience, tolerance, forgiveness, humility and so on are indispensable.
If we could, and we must, establish a deep long abiding relationship with nature, with the actual trees, the bushes, the flowers, the grass and the fast moving clouds, then we would never slaughter another human being for any reason whatsoever.
You have seen that the universe is at root a magical illusion and a fabulous game, and that there is no separate "you" to get something out of it, as if life were a bank to be robbed. The only real "you" is the one that comes and goes, manifests and withdraws itself eternally in and as every conscious being. For "you" is the universe looking at itself from billions of points of view, points that come and go so that the vision is forever new.
The inner voice is something which cannot be described in words. But sometimes we have a positive feeling that something in us prompts us to do a certain thing. The time when I learnt to recognise this voice was, I may say, the time when I started praying regularly.