When people find something that helps them, they want to tell everyone. That is natural, and it is often a mistake.
Talk about Gnosis, and most people hear a belief they do not share. They argue, or nod politely, or avoid you at the next family dinner. You have spent energy and changed nothing.
But people notice change. They notice when someone who used to explode now stays calm. They notice a friend who listens instead of waiting to speak. They notice who is kind in a crisis, and who does not gossip.
That is teaching by being. It is the only sermon that works, and it needs no words. When someone asks you how you have changed, then you can speak, briefly and simply, if they want to hear.
There is a further reason for this. Talking about the work can become a self of its own: the one who knows, the one who explains. Being keeps you honest. You cannot fake a calm you do not have for long.
None of this means hiding. Share freely when you are asked. The book you are reading is free for that reason. But let the life speak first.