A sense of being attacked by another with a tendral sapping your life forces indicates your desire to change and fight back.
Many dreams in which conflict takes place can represent many things such as feeling attacked or threatened by ones own impulses such as anger or your inner turmoil can lead to conflict or attacked by other people and their attitude to you or their remarks.
Attacked by shadowy spider is you overcoming your fears. This might be childhhod trauma the attack is depicting our memories and concerns surrounding those past issues. How we meet such an attack is important. Better to explore it or change it. Your breaking free of paralysis and shouting your patron deitys name means overcoming your fears with increased energy you are putting increased effort into solving your problems and succeeding.
There’s a huge thread on decoding your dreams, have a look at some point as there might be useful info regarding dream interupatation: