: The phrase might be a simple shift of 5 forward (ROT5) on letters? Check: t (20) +5 = y (25) → y h (8) +5 = m (13) → m m (13) +5 = r (18) → r y (25) +5 → d (4? Wrap 25+5=30→30-26=4→d) l (12) +5 = q (17) → q → ymrdq (no).
But if I : "rhawj ryaf yrf piV rkh lymht" — still nonsense. thmyl hkr Vip fry fayr jwahr
Let me test a few possibilities: