It's my personal philosophy that words have a vibration - not only because they physically vibrate the air which they are spoken into, but because very single word has its own unique vibrational being and energetic substance. Each word spoken gathers intent and meaning with every utterance by every being, every single time it's used.
Next time you say you 'hate' something or someone, think of the resonance behind the word, the power it has gathered down through the centuries, the concentrated intent behind every single letter. Think how poisonous and powerful it is.
Words have life; they have an ability to influence far beyond mere consonants and vowels. Once they are formed and spoken, they vibrate; they reverberate and take on a life of their own. Once said, you can't take them back - like a stone thrown into a lake, each ripple echoes out and touches everything else. On its reverse journey back to you, that ripple in the verbal lake might become a huge wave of words that sweeps you away.
So choose your words carefully and use them wisely. They have the power to impact upon everything around you.