address, just like, fortunately
宛 centers on directing something toward a specific target: writing an address, treating something as if it were something else (just like), or a situation turning out favorably as if by design (fortunately).
宛 combines 宀 (roof/building) with 夗, which likely contributes the sound and carries a sense of bending or curling. The exact historical development is uncertain, but the character came to express directing or addressing.
Under a roof 宀, a curled figure 夗 is bent over a desk, carefully writing an address on a letter. The scene feels directed and purposeful, as if everything is falling into place just right.
For エン, picture addressing an envelope under the roof: envelope -> エン, and you write the address neatly on it.
to address
address; destination
name and address (on an envelope, etc.); (addressee's) name; addressee
to allot; to assign; to allocate
address (on an envelope)
addressee
allotment; arrangement
destination address
addressing (e.g. writing an address on an envelope)
address (of a letter, parcel, etc.); destination
addressee's name and address; mailing address
as if; the very thing itself
eloquent; fluent; smooth-spoken; sonorous; facile; silver-tongued
to address (direct) a letter to a person
addressed to me; for me