Essence is a synonym of Effect. Effect is related to Result. Result is related to Math. Math is a different concept from English. 
Idea is related to Dream. Dream is related to Abstract. Abstract is a synonym of Isolate. 
Essence <--Synonym--> Effect <--RelatedTo--> Result <--RelatedTo--> Math <--DistinctFrom--> English 
Idea <--RelatedTo--> Dream <--RelatedTo--> Abstract <--Synonym--> Isolate 