Passage
And the child grew and was strengthened in spirit; and he was in the deserts until the day of his shewing to Israel.
And the child grew and was strengthened in spirit; and he was in the deserts until the day of his shewing to Israel.
Luke 1:78 on account of [the] bowels of mercy of our God; wherein [the] dayspring from on high has visited us,
Luke 1:79 to shine upon them who were sitting in darkness and in [the] shadow of death, to guide our feet into [the] way of peace.
Luke 1:80 And the child grew and was strengthened in spirit; and he was in the deserts until the day of his shewing to Israel.
The verse centers on "Spirit", "child", "grew", "strengthened", "deserts", "until", "shewing", and "israel". It is saying that the verse draws attention to "Spirit" and "child", so its meaning should be read from those terms before moving to application.
The prior verse says "to shine upon them who were sitting...", giving immediate footing for "Spirit" and "child". In Luke context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "Spirit" and "child" with trust shaped by these words, not by a vague optimism outside the passage.