Satya is derived from the word sat, which means ‘being,' ‘existing,' ‘happening,' and ‘being present. So again, the concept is simple. The truth is that which actually exists in the present. A chair is a chair, a flower is a flower, an idea floating through your mind is an idea, and a feeling in your heart is simply that, a feeling.
All these things are true in the sense that they are actually there in the present moment. They are perceptible to our physical, mental, or emotional observation instruments.
The complications arise, however, when we delve into the realm of our perception of truth and examine the veils of illusion that can distort our perception of reality. Like a cloud that blots out the sun, these distortions can make us see things or "truths" that aren't there and miss things that are.