Hi,
It's normal for your plant to be in shock. Your plant is just adjusting to the new soil and will need to work on letting its roots get attached to the new soil material. If you moved the plant to a location with a different temperature or sun exposure amount the shock may last longer. If all you did was repot it with same type of soil it is used to and have kept it in the same location then all should be well. By the way I think it's beautiful that you keep your lily as a way to honor your loved ones.