How to make long-term memories

How many people? You hear a song and it'll take you back to when you're a child. Raise your hand. How many people? It's not a song, but maybe it's a fragrance or a food that will take you back decades. Because information combined with emotion became a long term memory. Right? Because we're not logical, we're what? Biological. All learning is state dependent of how you feel. What's this? When we're defining a state, how would you define a state? It's like your mood. What else? It's your emotions. Like a snapshot of your mind and your body, how you feel. Here's the key. Do this. Information. Do this. Put your hands out. Information combined with emotion becomes a long term memory.