How would I turn a message into a gui?

The Message will basically say the map has loaded but I want it into a gui way is that possible?

m = Instance.new("Message",workspace)
    m.Text = ""..string.upper(Environment.Name).." is Loaded. Enter when instructed." -- Edit this to whatever you want, or remove it
    wait(5)
    m:Remove()
    elseif Off then
        for _,v in pairs(Environment:GetChildren()) do
            if v:IsA("BasePart") then
            Select(v,"White")
            wait()
            v:Remove()
            end
        end
    wait(0.1)
    Environment:Remove()
    end
end