Magick is bursting with a rich cornucopia of fascinating symbolism; this is how our subconscious mind works, on a deeply intuitive level. The ability to engage with your intuitive side is how one interprets the various symbols our subconscious minds project; is an essential component of effective Spell Craft and successful divination. However, the successful recognition of these symbols is entirely up to you as an individual, it cannot be learnt through reading a book or trolling the internet. The reason I say this is that a butterfly to one person can signify a beautiful omen due to their personal experience and interaction with it. But to another a butterfly can signify something else entirely.
Work towards understanding your symbols, observe how they make you feel and write it all down. It will help to understand yourself a little better and will prove quite handy when performing divination rituals, talisman work, dream interpretation, and general spell craft to name but a few.
Note: This is not something you should rush or force, let it come to you naturally and make sure you are open to receiving.