へ vs に: heading toward vs arriving at
へ points in a direction; に points at the destination itself.要点The idea
へ (pronounced e) marks a direction, toward somewhere, while に marks the destination itself.北きた へ 向むかう。kita e mukau.I head north.Pure direction: へ fits naturally.
空港くうこう へ 急いそぐ。kuukou e isogu.I hurry to the airport.
母はは へ の 手紙てがみhaha e no tegamia letter to my motherへ can link to a noun with の. に can't: ✗ 母ははにの手紙てがみ.
A東京とうきょう へ 行いく。toukyou e iku.I'm heading to Tokyo.
B東京とうきょう に 行いく。toukyou ni iku.I'm going to Tokyo.