to give
畀 centers on the act of giving or bestowing something to another person.
畀 is thought to combine 田 (field) with 丌 (a base or stand), but the exact historical development is uncertain. The character is rare and its origin is not clearly established.
The top 田 looks like a field, and the bottom 丌 resembles a stand. Picture someone giving a field on a stand as a gift.
For ヒ, imagine giving a gift and hearing the recipient say 'Hee!' in surprise: Hee -> ヒ.