How do I know if I have felt the Spirit of God?

How do I know if I have felt the Spirit of God? It is a unique experience that is impossible to describe. Some people have said that describing it is like trying to describe what salt tastes like. Salt tastes salty... it is its own differentiated flavor that cannot be described without experiencing it. So if it is so unique, then why does everyone use emotions to describe it? Just as some experiences are accompanied by emotions, (for example going to Disneyland may cause emotions of excitement), the emotions are not the experience itself, though they often accompany it. Another example might be, eating chocolate and describing it as "so good". Is that really a sufficiently descriptive word? "good". Of course not. You cannot understand what chocolate tastes like by me saying it tastes "good". If I said "How was the game last night, and I reply "good", I cant say.... "ahhhh, it was like chocolate". That is nonsense. You have to ex...