Passage
and his countenance was as lightning, and his clothing white as snow,
and his countenance was as lightning, and his clothing white as snow,
Matthew 28:1 And on the eve of the sabbaths, at the dawn, toward the first of the sabbaths, came Mary the Magdalene, and the other Mary, to see the sepulchre,
Matthew 28:2 and lo, there came a great earthquake, for a messenger of the Lord, having come down out of heaven, having come, did roll away the stone from the door, and was sitting upon it,
Matthew 28:3 and his countenance was as lightning, and his clothing white as snow,
Matthew 28:4 and from the fear of him did the keepers shake, and they became as dead men.
Matthew 28:5 And the messenger answering said to the women, `Fear not ye, for I have known that Jesus, who hath been crucified, ye seek;
The verse centers on "light", "countenance", "lightning", "clothing", "white", and "snow". It is saying that the verse draws attention to "light" and "countenance", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 2's "and lo there came a great earthquake..." into verse 4's "and from the fear of him did...", so "light" and "countenance" belong inside that flow. In Matthew context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "light" and "countenance" with trust shaped by these words, not by a vague optimism outside the passage.