Peel is related to Fruit. Fruit is related to Healthy. Healthy is the opposite of Disease. 
Self is a synonym of Ego. Ego is related to Awareness. Awareness is a synonym of Mind. Mind is a synonym of Listen. 
Peel <--RelatedTo--> Fruit <--RelatedTo--> Healthy <--Antonym--> Disease 
Self <--Synonym--> Ego <--RelatedTo--> Awareness <--Synonym--> Mind <--Synonym--> Listen 