The big seal script of character Relax is
The left is character Residence (Post 599), the right is character Give (Post 597), here means silkworm silk. People who live in a small house in a remote area, and raise silkworm to produce silk, feel relaxed. Another possible is that the character Give means spider net here. Spider net means remote area, quiet, if you live in a small house there, you feel relaxed. I prefer the latter explanation.
The small seal script of character Relax is
Similar to its big seal script.
The clerical script of character Relax is