Hello, "such a" plus a noun means "like that" or "to a high degree". It adds emphasis. Examples: Someone cuts in front of you in traffic. "Have you ever seen such a bad driver?" Someone tells you an obvious lie. "I have never heard such an obvious lie!" Someone does something kind and thoughtful. "He is such a kind person!" Such works the same way, but with mass nouns. Examples: Such hard work should be rewarded. I have never heard such nonsense. Such generosity is unusual. Hope that helps a bit. Best, Martha

Such is to describe an amount as in: "Did you see his acting he had such dedication" such as is like to make an example : "there are many great musicians in history, people such as Beethoven and Mozart"