Back when I lived on the West Coast, I had a friend, a real sweetheart of a guy. While he had been born Jewish, he had decided as an adult to turn his "spiritual" inclination to the Numerologists. Basically, the gist of that cult/belief system was that the numerical value related to an item was intrinsically connected to its spiritual destiny. In turn, he changed his name when he joined the "organization", the irony of which was that he wound up taking a biblical name. Strangely, I was actually the one who informed him of that fact.
Anyhow, we were once conversing, and he uttered a wonderful phrase: A word spoken can never be taken back. Now, we've all heard something similar, but that instance was the first time I heard it, and while I was certainly aware of the halachas of lashon hara, etc., it resonated with me. Not only does it cover the area of be careful in how you speak to others, it also expands to encompass how your thoughts are shaped by the words you say.
This evening, I was discussing my life, as one generally does when catching up with friends and family. Yet as I was talking, I remembered this instance with my West Coast friend, and it really struck me how the words we speak shape our reality. While we certainly all recognize this fundamental truth, it bears repeating: How we think about our lives is how we perceive our lives. And our choice of words simply feeds into that perception, and relays that perception to others. In short, the words we speak affect not only ourselves, but those who hear them, because it is through words that we fundamentally form relationships and connect with people. The words we speak consequently shape ourselves, our reality, and the reality of those nearest and dearest to us.
I think I'll try and keep that in the forefront of my mind for the time being. :)