Prepositions of Direction in Estonian grammar are essential in illustrating the movement or direction towards a specific location or object. They are widely used in the Estonian language to convey various degrees of direction. Some common prepositions of direction include “kuni” (until), “poole” (toward), “peale” (onto), “üle” (over), and “alla” (down). Learning and practising these prepositions will greatly aid in forming more complex sentences and improve overall comprehension of the Estonian language.