Luke 11:33 No man, when he hath lighted a candle, putteth it in a secret place, neither under a bushel, but on a candlestick, that they which come in may see the light.
What good is it to light a candle and hide it? Are you ashamed of your candle? It's purpose is to give out light, let it shine.
Luke 11:34 The light of the body is the eye: therefore when thine eye is single, thy whole body also is full of light; but when thine eye is evil, thy body also is full of darkness.
Luke 11:35 Take heed therefore that the light which is in thee be not darkness.
What is meant by a single eye? It refers to focusing on one thing, and we know that is God. We keep our eyes on the things of God, his Bible, his purpose, to be the light and truth reaching out to others. If we look at evil things, soon our thoughts will be in darkness. We must keep our minds on God's word.
Luke 11:36 If thy whole body therefore be full of light, having no part dark, the whole shall be full of light, as when the bright shining of a candle doth give thee light.
Isn't that what God wants for us? It is what I want to.
John 8:12 Then spake Jesus again unto them, saying, I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life. Jesus is the light of truth
John 14:6 Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.
Let your light shine in a sin darkened world, so others may come to Jesus. Eaglewings New Testament Studies