In this quote, Lymond openly admits his disdain for life, expressing a sense of hopelessness and a struggle with feelings of failure. His words reflect a moment of vulnerability where he acknowledges his temporary sorrow, which he calls immaturity reacting to setbacks.
Despite his current despair, Lymond remains optimistic, believing that tomorrow he will once again feel lively and spirited. He shows resilience and the capacity to bounce back from emotional lows, highlighting a recurring theme of endurance and hope amidst adversity.