The seed (the word) is incorruptible. When we recognise this fact it sets us free as we realise God does not turn away from us- it is not his fault. God wants to pour in; when we let the word fall by the wayside we lose what He wants to say to us. When we let the word stay shallow and not take root we remain unstable and can be washed away. We have to be aware of the schemes of the devil.
Mark 4:1-20 Hebrews 5:1-19, 1 Peter 3:7